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Finding the Fourth Proportional to 5,660.95, 8,491.80 and 1,500.90

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Solution

The fourth proportional to 5,660.95, 8,491.80 and 1,500.90 is: 2,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.95 : 8,491.80 = 1,500.90 : x
  2. Step 2: Convert to fraction form
    5,660.95/8,491.80 = 1,500.90/x
  3. Step 3: Cross multiply
    5,660.95x = 8,491.80 × 1,500.90
  4. Step 4: Simplify right side
    5,660.95x = 12,745,342.62
  5. Step 5: Solve for x
    x = 12,745,342.62/5,660.95
  6. Step 6: Final answer
    x = 2,251.45

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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.