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Finding the Fourth Proportional to 22,013,010.20, 30,881,987.20 and 22,013,010.20

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Solution

The fourth proportional to 22,013,010.20, 30,881,987.20 and 22,013,010.20 is: 30,881,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,013,010.20 : 30,881,987.20 = 22,013,010.20 : x
  2. Step 2: Convert to fraction form
    22,013,010.20/30,881,987.20 = 22,013,010.20/x
  3. Step 3: Cross multiply
    22,013,010.20x = 30,881,987.20 × 22,013,010.20
  4. Step 4: Simplify right side
    22,013,010.20x = 679,805,499,229,869.38
  5. Step 5: Solve for x
    x = 679,805,499,229,869.38/22,013,010.20
  6. Step 6: Final answer
    x = 30,881,987.20

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Double scale
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1.5x scale

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.