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Finding the Fourth Proportional to 16,965.33, 23,412.18 and 9,411.66

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Solution

The fourth proportional to 16,965.33, 23,412.18 and 9,411.66 is: 12,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,965.33 : 23,412.18 = 9,411.66 : x
  2. Step 2: Convert to fraction form
    16,965.33/23,412.18 = 9,411.66/x
  3. Step 3: Cross multiply
    16,965.33x = 23,412.18 × 9,411.66
  4. Step 4: Simplify right side
    16,965.33x = 220,347,385.47
  5. Step 5: Solve for x
    x = 220,347,385.47/16,965.33
  6. Step 6: Final answer
    x = 12,988.10

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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.