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Finding the Fourth Proportional to 6,535.86, 9,015 and 4,176.90

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Solution

The fourth proportional to 6,535.86, 9,015 and 4,176.90 is: 5,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,535.86 : 9,015 = 4,176.90 : x
  2. Step 2: Convert to fraction form
    6,535.86/9,015 = 4,176.90/x
  3. Step 3: Cross multiply
    6,535.86x = 9,015 × 4,176.90
  4. Step 4: Simplify right side
    6,535.86x = 37,654,753.50
  5. Step 5: Solve for x
    x = 37,654,753.50/6,535.86
  6. Step 6: Final answer
    x = 5,761.25

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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.