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Finding the Fourth Proportional to 5,134.61, 7,082.63 and 3,788.87

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Solution

The fourth proportional to 5,134.61, 7,082.63 and 3,788.87 is: 5,226.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.61 : 7,082.63 = 3,788.87 : x
  2. Step 2: Convert to fraction form
    5,134.61/7,082.63 = 3,788.87/x
  3. Step 3: Cross multiply
    5,134.61x = 7,082.63 × 3,788.87
  4. Step 4: Simplify right side
    5,134.61x = 26,835,138.39
  5. Step 5: Solve for x
    x = 26,835,138.39/5,134.61
  6. Step 6: Final answer
    x = 5,226.33

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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.