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Finding the Fourth Proportional to 16,402.50, 22,636.67 and 9,331.20

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Solution

The fourth proportional to 16,402.50, 22,636.67 and 9,331.20 is: 12,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402.50 : 22,636.67 = 9,331.20 : x
  2. Step 2: Convert to fraction form
    16,402.50/22,636.67 = 9,331.20/x
  3. Step 3: Cross multiply
    16,402.50x = 22,636.67 × 9,331.20
  4. Step 4: Simplify right side
    16,402.50x = 211,227,248.45
  5. Step 5: Solve for x
    x = 211,227,248.45/16,402.50
  6. Step 6: Final answer
    x = 12,877.75

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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.