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Finding the Fourth Proportional to 53,414, 73,708.42 and 29,539.28

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Solution

The fourth proportional to 53,414, 73,708.42 and 29,539.28 is: 40,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,414 : 73,708.42 = 29,539.28 : x
  2. Step 2: Convert to fraction form
    53,414/73,708.42 = 29,539.28/x
  3. Step 3: Cross multiply
    53,414x = 73,708.42 × 29,539.28
  4. Step 4: Simplify right side
    53,414x = 2,177,293,656.74
  5. Step 5: Solve for x
    x = 2,177,293,656.74/53,414
  6. Step 6: Final answer
    x = 40,762.60

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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.