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Finding the Fourth Proportional to 7,410.71, 11,119.14 and 3,248.57

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Solution

The fourth proportional to 7,410.71, 11,119.14 and 3,248.57 is: 4,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.71 : 11,119.14 = 3,248.57 : x
  2. Step 2: Convert to fraction form
    7,410.71/11,119.14 = 3,248.57/x
  3. Step 3: Cross multiply
    7,410.71x = 11,119.14 × 3,248.57
  4. Step 4: Simplify right side
    7,410.71x = 36,121,332.43
  5. Step 5: Solve for x
    x = 36,121,332.43/7,410.71
  6. Step 6: Final answer
    x = 4,874.21

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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.