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Finding the Fourth Proportional to 18,016.80, 24,865.28 and 10,941.28

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Solution

The fourth proportional to 18,016.80, 24,865.28 and 10,941.28 is: 15,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.80 : 24,865.28 = 10,941.28 : x
  2. Step 2: Convert to fraction form
    18,016.80/24,865.28 = 10,941.28/x
  3. Step 3: Cross multiply
    18,016.80x = 24,865.28 × 10,941.28
  4. Step 4: Simplify right side
    18,016.80x = 272,057,990.76
  5. Step 5: Solve for x
    x = 272,057,990.76/18,016.80
  6. Step 6: Final answer
    x = 15,100.24

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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.