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Finding the Fourth Proportional to 18,009.80, 24,853.30 and 9,943.52

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Solution

The fourth proportional to 18,009.80, 24,853.30 and 9,943.52 is: 13,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.80 : 24,853.30 = 9,943.52 : x
  2. Step 2: Convert to fraction form
    18,009.80/24,853.30 = 9,943.52/x
  3. Step 3: Cross multiply
    18,009.80x = 24,853.30 × 9,943.52
  4. Step 4: Simplify right side
    18,009.80x = 247,129,285.62
  5. Step 5: Solve for x
    x = 247,129,285.62/18,009.80
  6. Step 6: Final answer
    x = 13,721.93

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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.