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Finding the Fourth Proportional to 42,468, 63,253.44 and 40,247.52

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Solution

The fourth proportional to 42,468, 63,253.44 and 40,247.52 is: 59,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,468 : 63,253.44 = 40,247.52 : x
  2. Step 2: Convert to fraction form
    42,468/63,253.44 = 40,247.52/x
  3. Step 3: Cross multiply
    42,468x = 63,253.44 × 40,247.52
  4. Step 4: Simplify right side
    42,468x = 2,545,794,091.47
  5. Step 5: Solve for x
    x = 2,545,794,091.47/42,468
  6. Step 6: Final answer
    x = 59,946.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.