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Finding the Fourth Proportional to 22,988,904.20, 34,483,356.30 and 20,863,140.20

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Solution

The fourth proportional to 22,988,904.20, 34,483,356.30 and 20,863,140.20 is: 31,294,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,988,904.20 : 34,483,356.30 = 20,863,140.20 : x
  2. Step 2: Convert to fraction form
    22,988,904.20/34,483,356.30 = 20,863,140.20/x
  3. Step 3: Cross multiply
    22,988,904.20x = 34,483,356.30 × 20,863,140.20
  4. Step 4: Simplify right side
    22,988,904.20x = 719,431,097,053,453.12
  5. Step 5: Solve for x
    x = 719,431,097,053,453.12/22,988,904.20
  6. Step 6: Final answer
    x = 31,294,710.30

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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.