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Finding the Fourth Proportional to 7,402.47, 11,113.47 and 6,791.19

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Solution

The fourth proportional to 7,402.47, 11,113.47 and 6,791.19 is: 10,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.47 : 11,113.47 = 6,791.19 : x
  2. Step 2: Convert to fraction form
    7,402.47/11,113.47 = 6,791.19/x
  3. Step 3: Cross multiply
    7,402.47x = 11,113.47 × 6,791.19
  4. Step 4: Simplify right side
    7,402.47x = 75,473,686.33
  5. Step 5: Solve for x
    x = 75,473,686.33/7,402.47
  6. Step 6: Final answer
    x = 10,195.74

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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.