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Finding the Fourth Proportional to 8,593.79, 12,881.46 and 5,631.11

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Solution

The fourth proportional to 8,593.79, 12,881.46 and 5,631.11 is: 8,440.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.79 : 12,881.46 = 5,631.11 : x
  2. Step 2: Convert to fraction form
    8,593.79/12,881.46 = 5,631.11/x
  3. Step 3: Cross multiply
    8,593.79x = 12,881.46 × 5,631.11
  4. Step 4: Simplify right side
    8,593.79x = 72,536,923.24
  5. Step 5: Solve for x
    x = 72,536,923.24/8,593.79
  6. Step 6: Final answer
    x = 8,440.63

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1.5x scale

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.