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Finding the Fourth Proportional to 27,654,756.90, 38,644,915.13 and 27,654,756.90

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Solution

The fourth proportional to 27,654,756.90, 38,644,915.13 and 27,654,756.90 is: 38,644,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654,756.90 : 38,644,915.13 = 27,654,756.90 : x
  2. Step 2: Convert to fraction form
    27,654,756.90/38,644,915.13 = 27,654,756.90/x
  3. Step 3: Cross multiply
    27,654,756.90x = 38,644,915.13 × 27,654,756.90
  4. Step 4: Simplify right side
    27,654,756.90x = 1,068,715,733,203,008
  5. Step 5: Solve for x
    x = 1,068,715,733,203,008/27,654,756.90
  6. Step 6: Final answer
    x = 38,644,915.13

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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.