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Finding the Fourth Proportional to 57,911.60, 86,867.40 and 16,358.60

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Solution

The fourth proportional to 57,911.60, 86,867.40 and 16,358.60 is: 24,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,911.60 : 86,867.40 = 16,358.60 : x
  2. Step 2: Convert to fraction form
    57,911.60/86,867.40 = 16,358.60/x
  3. Step 3: Cross multiply
    57,911.60x = 86,867.40 × 16,358.60
  4. Step 4: Simplify right side
    57,911.60x = 1,421,029,049.64
  5. Step 5: Solve for x
    x = 1,421,029,049.64/57,911.60
  6. Step 6: Final answer
    x = 24,537.90

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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.