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Finding the Fourth Proportional to 62,219.52, 85,862.94 and 39,863.52

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Solution

The fourth proportional to 62,219.52, 85,862.94 and 39,863.52 is: 55,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,219.52 : 85,862.94 = 39,863.52 : x
  2. Step 2: Convert to fraction form
    62,219.52/85,862.94 = 39,863.52/x
  3. Step 3: Cross multiply
    62,219.52x = 85,862.94 × 39,863.52
  4. Step 4: Simplify right side
    62,219.52x = 3,422,799,025.95
  5. Step 5: Solve for x
    x = 3,422,799,025.95/62,219.52
  6. Step 6: Final answer
    x = 55,011.66

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1.5x scale

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.