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Finding the Fourth Proportional to 7,491.68, 10,335.36 and 5,255.02

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Solution

The fourth proportional to 7,491.68, 10,335.36 and 5,255.02 is: 7,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.68 : 10,335.36 = 5,255.02 : x
  2. Step 2: Convert to fraction form
    7,491.68/10,335.36 = 5,255.02/x
  3. Step 3: Cross multiply
    7,491.68x = 10,335.36 × 5,255.02
  4. Step 4: Simplify right side
    7,491.68x = 54,312,471.83
  5. Step 5: Solve for x
    x = 54,312,471.83/7,491.68
  6. Step 6: Final answer
    x = 7,249.71

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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.