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Finding the Fourth Proportional to 6,649.68, 9,972.90 and 4,471.59

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Solution

The fourth proportional to 6,649.68, 9,972.90 and 4,471.59 is: 6,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.68 : 9,972.90 = 4,471.59 : x
  2. Step 2: Convert to fraction form
    6,649.68/9,972.90 = 4,471.59/x
  3. Step 3: Cross multiply
    6,649.68x = 9,972.90 × 4,471.59
  4. Step 4: Simplify right side
    6,649.68x = 44,594,719.91
  5. Step 5: Solve for x
    x = 44,594,719.91/6,649.68
  6. Step 6: Final answer
    x = 6,706.30

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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.