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Finding the Fourth Proportional to 12,562.70, 18,843.13 and 5,066.77

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Solution

The fourth proportional to 12,562.70, 18,843.13 and 5,066.77 is: 7,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.70 : 18,843.13 = 5,066.77 : x
  2. Step 2: Convert to fraction form
    12,562.70/18,843.13 = 5,066.77/x
  3. Step 3: Cross multiply
    12,562.70x = 18,843.13 × 5,066.77
  4. Step 4: Simplify right side
    12,562.70x = 95,473,805.79
  5. Step 5: Solve for x
    x = 95,473,805.79/12,562.70
  6. Step 6: Final answer
    x = 7,599.78

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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.