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Finding the Fourth Proportional to 17,101.68, 25,652.52 and 13,660.80

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Solution

The fourth proportional to 17,101.68, 25,652.52 and 13,660.80 is: 20,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,101.68 : 25,652.52 = 13,660.80 : x
  2. Step 2: Convert to fraction form
    17,101.68/25,652.52 = 13,660.80/x
  3. Step 3: Cross multiply
    17,101.68x = 25,652.52 × 13,660.80
  4. Step 4: Simplify right side
    17,101.68x = 350,433,945.22
  5. Step 5: Solve for x
    x = 350,433,945.22/17,101.68
  6. Step 6: Final answer
    x = 20,491.20

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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.