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Finding the Fourth Proportional to 61,860.24, 85,448.52 and 47,432.52

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Solution

The fourth proportional to 61,860.24, 85,448.52 and 47,432.52 is: 65,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860.24 : 85,448.52 = 47,432.52 : x
  2. Step 2: Convert to fraction form
    61,860.24/85,448.52 = 47,432.52/x
  3. Step 3: Cross multiply
    61,860.24x = 85,448.52 × 47,432.52
  4. Step 4: Simplify right side
    61,860.24x = 4,053,038,633.87
  5. Step 5: Solve for x
    x = 4,053,038,633.87/61,860.24
  6. Step 6: Final answer
    x = 65,519.28

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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.