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Finding the Fourth Proportional to 7,471.01, 10,308.39 and 5,903.66

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Solution

The fourth proportional to 7,471.01, 10,308.39 and 5,903.66 is: 8,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.01 : 10,308.39 = 5,903.66 : x
  2. Step 2: Convert to fraction form
    7,471.01/10,308.39 = 5,903.66/x
  3. Step 3: Cross multiply
    7,471.01x = 10,308.39 × 5,903.66
  4. Step 4: Simplify right side
    7,471.01x = 60,857,229.71
  5. Step 5: Solve for x
    x = 60,857,229.71/7,471.01
  6. Step 6: Final answer
    x = 8,145.78

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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.