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Finding the Fourth Proportional to 61,988.80, 85,538.57 and 34,766.00

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Solution

The fourth proportional to 61,988.80, 85,538.57 and 34,766.00 is: 47,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,988.80 : 85,538.57 = 34,766.00 : x
  2. Step 2: Convert to fraction form
    61,988.80/85,538.57 = 34,766.00/x
  3. Step 3: Cross multiply
    61,988.80x = 85,538.57 × 34,766.00
  4. Step 4: Simplify right side
    61,988.80x = 2,973,834,320.58
  5. Step 5: Solve for x
    x = 2,973,834,320.58/61,988.80
  6. Step 6: Final answer
    x = 47,973.74

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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.