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Finding the Fourth Proportional to 5,634.48, 8,454.48 and 2,715.20

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Solution

The fourth proportional to 5,634.48, 8,454.48 and 2,715.20 is: 4,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,634.48 : 8,454.48 = 2,715.20 : x
  2. Step 2: Convert to fraction form
    5,634.48/8,454.48 = 2,715.20/x
  3. Step 3: Cross multiply
    5,634.48x = 8,454.48 × 2,715.20
  4. Step 4: Simplify right side
    5,634.48x = 22,955,604.10
  5. Step 5: Solve for x
    x = 22,955,604.10/5,634.48
  6. Step 6: Final answer
    x = 4,074.13

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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.