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Finding the Fourth Proportional to 22,569,907.52, 31,156,007.80 and 15,237,672.88

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Solution

The fourth proportional to 22,569,907.52, 31,156,007.80 and 15,237,672.88 is: 21,034,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569,907.52 : 31,156,007.80 = 15,237,672.88 : x
  2. Step 2: Convert to fraction form
    22,569,907.52/31,156,007.80 = 15,237,672.88/x
  3. Step 3: Cross multiply
    22,569,907.52x = 31,156,007.80 × 15,237,672.88
  4. Step 4: Simplify right side
    22,569,907.52x = 474,745,055,103,128.50
  5. Step 5: Solve for x
    x = 474,745,055,103,128.50/22,569,907.52
  6. Step 6: Final answer
    x = 21,034,426.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.