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Finding the Fourth Proportional to 7,151.15, 9,862.76 and 5,469.93

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Solution

The fourth proportional to 7,151.15, 9,862.76 and 5,469.93 is: 7,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.15 : 9,862.76 = 5,469.93 : x
  2. Step 2: Convert to fraction form
    7,151.15/9,862.76 = 5,469.93/x
  3. Step 3: Cross multiply
    7,151.15x = 9,862.76 × 5,469.93
  4. Step 4: Simplify right side
    7,151.15x = 53,948,620.48
  5. Step 5: Solve for x
    x = 53,948,620.48/7,151.15
  6. Step 6: Final answer
    x = 7,544.05

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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.