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Finding the Fourth Proportional to 7,753.39, 10,700.70 and 7,542.29

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Solution

The fourth proportional to 7,753.39, 10,700.70 and 7,542.29 is: 10,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.39 : 10,700.70 = 7,542.29 : x
  2. Step 2: Convert to fraction form
    7,753.39/10,700.70 = 7,542.29/x
  3. Step 3: Cross multiply
    7,753.39x = 10,700.70 × 7,542.29
  4. Step 4: Simplify right side
    7,753.39x = 80,707,744.89
  5. Step 5: Solve for x
    x = 80,707,744.89/7,753.39
  6. Step 6: Final answer
    x = 10,409.36

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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.