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Finding the Fourth Proportional to 7,201.52, 9,937.88 and 4,057.52

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Solution

The fourth proportional to 7,201.52, 9,937.88 and 4,057.52 is: 5,599.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.52 : 9,937.88 = 4,057.52 : x
  2. Step 2: Convert to fraction form
    7,201.52/9,937.88 = 4,057.52/x
  3. Step 3: Cross multiply
    7,201.52x = 9,937.88 × 4,057.52
  4. Step 4: Simplify right side
    7,201.52x = 40,323,146.86
  5. Step 5: Solve for x
    x = 40,323,146.86/7,201.52
  6. Step 6: Final answer
    x = 5,599.25

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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.