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Finding the Fourth Proportional to 62,477.64, 86,250.42 and 42,440.52

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Solution

The fourth proportional to 62,477.64, 86,250.42 and 42,440.52 is: 58,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,477.64 : 86,250.42 = 42,440.52 : x
  2. Step 2: Convert to fraction form
    62,477.64/86,250.42 = 42,440.52/x
  3. Step 3: Cross multiply
    62,477.64x = 86,250.42 × 42,440.52
  4. Step 4: Simplify right side
    62,477.64x = 3,660,512,675.02
  5. Step 5: Solve for x
    x = 3,660,512,675.02/62,477.64
  6. Step 6: Final answer
    x = 58,589.16

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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.