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Finding the Fourth Proportional to 5,371.92, 7,411.50 and 3,132.68

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Solution

The fourth proportional to 5,371.92, 7,411.50 and 3,132.68 is: 4,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.92 : 7,411.50 = 3,132.68 : x
  2. Step 2: Convert to fraction form
    5,371.92/7,411.50 = 3,132.68/x
  3. Step 3: Cross multiply
    5,371.92x = 7,411.50 × 3,132.68
  4. Step 4: Simplify right side
    5,371.92x = 23,217,820.76
  5. Step 5: Solve for x
    x = 23,217,820.76/5,371.92
  6. Step 6: Final answer
    x = 4,322.07

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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.