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Finding the Fourth Proportional to 6,738,398.30, 10,107,597.45 and 6,561,251.30

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Solution

The fourth proportional to 6,738,398.30, 10,107,597.45 and 6,561,251.30 is: 9,841,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738,398.30 : 10,107,597.45 = 6,561,251.30 : x
  2. Step 2: Convert to fraction form
    6,738,398.30/10,107,597.45 = 6,561,251.30/x
  3. Step 3: Cross multiply
    6,738,398.30x = 10,107,597.45 × 6,561,251.30
  4. Step 4: Simplify right side
    6,738,398.30x = 66,318,486,908,689.18
  5. Step 5: Solve for x
    x = 66,318,486,908,689.18/6,738,398.30
  6. Step 6: Final answer
    x = 9,841,876.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.