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Finding the Fourth Proportional to 8,463.85, 12,691.02 and 5,798.45

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Solution

The fourth proportional to 8,463.85, 12,691.02 and 5,798.45 is: 8,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.85 : 12,691.02 = 5,798.45 : x
  2. Step 2: Convert to fraction form
    8,463.85/12,691.02 = 5,798.45/x
  3. Step 3: Cross multiply
    8,463.85x = 12,691.02 × 5,798.45
  4. Step 4: Simplify right side
    8,463.85x = 73,588,250.80
  5. Step 5: Solve for x
    x = 73,588,250.80/8,463.85
  6. Step 6: Final answer
    x = 8,694.42

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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.