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Finding the Fourth Proportional to 17,842.20, 24,621.06 and 9,885.16

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Solution

The fourth proportional to 17,842.20, 24,621.06 and 9,885.16 is: 13,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,842.20 : 24,621.06 = 9,885.16 : x
  2. Step 2: Convert to fraction form
    17,842.20/24,621.06 = 9,885.16/x
  3. Step 3: Cross multiply
    17,842.20x = 24,621.06 × 9,885.16
  4. Step 4: Simplify right side
    17,842.20x = 243,383,117.47
  5. Step 5: Solve for x
    x = 243,383,117.47/17,842.20
  6. Step 6: Final answer
    x = 13,640.87

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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.