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Finding the Fourth Proportional to 7,149.18, 9,867.84 and 5,025.18

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Solution

The fourth proportional to 7,149.18, 9,867.84 and 5,025.18 is: 6,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.18 : 9,867.84 = 5,025.18 : x
  2. Step 2: Convert to fraction form
    7,149.18/9,867.84 = 5,025.18/x
  3. Step 3: Cross multiply
    7,149.18x = 9,867.84 × 5,025.18
  4. Step 4: Simplify right side
    7,149.18x = 49,587,672.21
  5. Step 5: Solve for x
    x = 49,587,672.21/7,149.18
  6. Step 6: Final answer
    x = 6,936.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.