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Finding the Fourth Proportional to 6,591.86, 9,095.87 and 3,938.70

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Solution

The fourth proportional to 6,591.86, 9,095.87 and 3,938.70 is: 5,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,591.86 : 9,095.87 = 3,938.70 : x
  2. Step 2: Convert to fraction form
    6,591.86/9,095.87 = 3,938.70/x
  3. Step 3: Cross multiply
    6,591.86x = 9,095.87 × 3,938.70
  4. Step 4: Simplify right side
    6,591.86x = 35,825,903.17
  5. Step 5: Solve for x
    x = 35,825,903.17/6,591.86
  6. Step 6: Final answer
    x = 5,434.87

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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.