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Finding the Fourth Proportional to 28,184.79, 38,892.69 and 16,248.96

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Solution

The fourth proportional to 28,184.79, 38,892.69 and 16,248.96 is: 22,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.79 : 38,892.69 = 16,248.96 : x
  2. Step 2: Convert to fraction form
    28,184.79/38,892.69 = 16,248.96/x
  3. Step 3: Cross multiply
    28,184.79x = 38,892.69 × 16,248.96
  4. Step 4: Simplify right side
    28,184.79x = 631,965,764.10
  5. Step 5: Solve for x
    x = 631,965,764.10/28,184.79
  6. Step 6: Final answer
    x = 22,422.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.