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Finding the Fourth Proportional to 18,001.79, 24,841.89 and 9,825.08

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Solution

The fourth proportional to 18,001.79, 24,841.89 and 9,825.08 is: 13,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.79 : 24,841.89 = 9,825.08 : x
  2. Step 2: Convert to fraction form
    18,001.79/24,841.89 = 9,825.08/x
  3. Step 3: Cross multiply
    18,001.79x = 24,841.89 × 9,825.08
  4. Step 4: Simplify right side
    18,001.79x = 244,073,556.60
  5. Step 5: Solve for x
    x = 244,073,556.60/18,001.79
  6. Step 6: Final answer
    x = 13,558.29

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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.