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Finding the Fourth Proportional to 18,200.93, 25,103.22 and 15,959.04

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Solution

The fourth proportional to 18,200.93, 25,103.22 and 15,959.04 is: 22,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,200.93 : 25,103.22 = 15,959.04 : x
  2. Step 2: Convert to fraction form
    18,200.93/25,103.22 = 15,959.04/x
  3. Step 3: Cross multiply
    18,200.93x = 25,103.22 × 15,959.04
  4. Step 4: Simplify right side
    18,200.93x = 400,623,292.11
  5. Step 5: Solve for x
    x = 400,623,292.11/18,200.93
  6. Step 6: Final answer
    x = 22,011.15

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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.