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Finding the Fourth Proportional to 15,164,229.60, 21,267,712.80 and 15,164,229.60

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Solution

The fourth proportional to 15,164,229.60, 21,267,712.80 and 15,164,229.60 is: 21,267,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164,229.60 : 21,267,712.80 = 15,164,229.60 : x
  2. Step 2: Convert to fraction form
    15,164,229.60/21,267,712.80 = 15,164,229.60/x
  3. Step 3: Cross multiply
    15,164,229.60x = 21,267,712.80 × 15,164,229.60
  4. Step 4: Simplify right side
    15,164,229.60x = 322,508,479,966,058.88
  5. Step 5: Solve for x
    x = 322,508,479,966,058.88/15,164,229.60
  6. Step 6: Final answer
    x = 21,267,712.80

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.