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Finding the Fourth Proportional to 57,590.64, 86,410.92 and 28,034.16

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Solution

The fourth proportional to 57,590.64, 86,410.92 and 28,034.16 is: 42,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,590.64 : 86,410.92 = 28,034.16 : x
  2. Step 2: Convert to fraction form
    57,590.64/86,410.92 = 28,034.16/x
  3. Step 3: Cross multiply
    57,590.64x = 86,410.92 × 28,034.16
  4. Step 4: Simplify right side
    57,590.64x = 2,422,457,557.03
  5. Step 5: Solve for x
    x = 2,422,457,557.03/57,590.64
  6. Step 6: Final answer
    x = 42,063.39

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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.