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Finding the Fourth Proportional to 9,167.92, 13,757.64 and 4,490.80

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Solution

The fourth proportional to 9,167.92, 13,757.64 and 4,490.80 is: 6,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.92 : 13,757.64 = 4,490.80 : x
  2. Step 2: Convert to fraction form
    9,167.92/13,757.64 = 4,490.80/x
  3. Step 3: Cross multiply
    9,167.92x = 13,757.64 × 4,490.80
  4. Step 4: Simplify right side
    9,167.92x = 61,782,809.71
  5. Step 5: Solve for x
    x = 61,782,809.71/9,167.92
  6. Step 6: Final answer
    x = 6,739.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.