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Finding the Fourth Proportional to 17,842.23, 24,623.66 and 9,885.20

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Solution

The fourth proportional to 17,842.23, 24,623.66 and 9,885.20 is: 13,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,842.23 : 24,623.66 = 9,885.20 : x
  2. Step 2: Convert to fraction form
    17,842.23/24,623.66 = 9,885.20/x
  3. Step 3: Cross multiply
    17,842.23x = 24,623.66 × 9,885.20
  4. Step 4: Simplify right side
    17,842.23x = 243,409,705.43
  5. Step 5: Solve for x
    x = 243,409,705.43/17,842.23
  6. Step 6: Final answer
    x = 13,642.34

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Similar ratio
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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.