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Finding the Fourth Proportional to 8,374.78, 12,545.43 and 5,041.18

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Solution

The fourth proportional to 8,374.78, 12,545.43 and 5,041.18 is: 7,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.78 : 12,545.43 = 5,041.18 : x
  2. Step 2: Convert to fraction form
    8,374.78/12,545.43 = 5,041.18/x
  3. Step 3: Cross multiply
    8,374.78x = 12,545.43 × 5,041.18
  4. Step 4: Simplify right side
    8,374.78x = 63,243,767.58
  5. Step 5: Solve for x
    x = 63,243,767.58/8,374.78
  6. Step 6: Final answer
    x = 7,551.69

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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.