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Finding the Fourth Proportional to 56,314.52, 84,487.72 and 28,200.64

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Solution

The fourth proportional to 56,314.52, 84,487.72 and 28,200.64 is: 42,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,314.52 : 84,487.72 = 28,200.64 : x
  2. Step 2: Convert to fraction form
    56,314.52/84,487.72 = 28,200.64/x
  3. Step 3: Cross multiply
    56,314.52x = 84,487.72 × 28,200.64
  4. Step 4: Simplify right side
    56,314.52x = 2,382,607,776.14
  5. Step 5: Solve for x
    x = 2,382,607,776.14/56,314.52
  6. Step 6: Final answer
    x = 42,308.94

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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.