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Finding the Fourth Proportional to 56,276.92, 84,321.92 and 39,602.08

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Solution

The fourth proportional to 56,276.92, 84,321.92 and 39,602.08 is: 59,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,276.92 : 84,321.92 = 39,602.08 : x
  2. Step 2: Convert to fraction form
    56,276.92/84,321.92 = 39,602.08/x
  3. Step 3: Cross multiply
    56,276.92x = 84,321.92 × 39,602.08
  4. Step 4: Simplify right side
    56,276.92x = 3,339,323,421.59
  5. Step 5: Solve for x
    x = 3,339,323,421.59/56,276.92
  6. Step 6: Final answer
    x = 59,337.35

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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.