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Finding the Fourth Proportional to 60,429.92, 90,646.66 and 28,843.31

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Solution

The fourth proportional to 60,429.92, 90,646.66 and 28,843.31 is: 43,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,429.92 : 90,646.66 = 28,843.31 : x
  2. Step 2: Convert to fraction form
    60,429.92/90,646.66 = 28,843.31/x
  3. Step 3: Cross multiply
    60,429.92x = 90,646.66 × 28,843.31
  4. Step 4: Simplify right side
    60,429.92x = 2,614,549,714.84
  5. Step 5: Solve for x
    x = 2,614,549,714.84/60,429.92
  6. Step 6: Final answer
    x = 43,265.81

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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.