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Finding the Fourth Proportional to 8,981.54, 13,472.64 and 4,593.86

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Solution

The fourth proportional to 8,981.54, 13,472.64 and 4,593.86 is: 6,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.54 : 13,472.64 = 4,593.86 : x
  2. Step 2: Convert to fraction form
    8,981.54/13,472.64 = 4,593.86/x
  3. Step 3: Cross multiply
    8,981.54x = 13,472.64 × 4,593.86
  4. Step 4: Simplify right side
    8,981.54x = 61,891,421.99
  5. Step 5: Solve for x
    x = 61,891,421.99/8,981.54
  6. Step 6: Final answer
    x = 6,890.96

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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.