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Finding the Fourth Proportional to 3,612.87, 5,417.10 and 1,503.18

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Solution

The fourth proportional to 3,612.87, 5,417.10 and 1,503.18 is: 2,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.87 : 5,417.10 = 1,503.18 : x
  2. Step 2: Convert to fraction form
    3,612.87/5,417.10 = 1,503.18/x
  3. Step 3: Cross multiply
    3,612.87x = 5,417.10 × 1,503.18
  4. Step 4: Simplify right side
    3,612.87x = 8,142,876.38
  5. Step 5: Solve for x
    x = 8,142,876.38/3,612.87
  6. Step 6: Final answer
    x = 2,253.85

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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.