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Finding the Fourth Proportional to 16,687.80, 25,031.70 and 5,009.22

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Solution

The fourth proportional to 16,687.80, 25,031.70 and 5,009.22 is: 7,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,687.80 : 25,031.70 = 5,009.22 : x
  2. Step 2: Convert to fraction form
    16,687.80/25,031.70 = 5,009.22/x
  3. Step 3: Cross multiply
    16,687.80x = 25,031.70 × 5,009.22
  4. Step 4: Simplify right side
    16,687.80x = 125,389,292.27
  5. Step 5: Solve for x
    x = 125,389,292.27/16,687.80
  6. Step 6: Final answer
    x = 7,513.83

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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.