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Finding the Fourth Proportional to 60,746.39, 91,033.96 and 28,691.30

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Solution

The fourth proportional to 60,746.39, 91,033.96 and 28,691.30 is: 42,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,746.39 : 91,033.96 = 28,691.30 : x
  2. Step 2: Convert to fraction form
    60,746.39/91,033.96 = 28,691.30/x
  3. Step 3: Cross multiply
    60,746.39x = 91,033.96 × 28,691.30
  4. Step 4: Simplify right side
    60,746.39x = 2,611,882,129.65
  5. Step 5: Solve for x
    x = 2,611,882,129.65/60,746.39
  6. Step 6: Final answer
    x = 42,996.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.