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Finding the Fourth Proportional to 14,671.43, 20,220.14 and 10,686.23

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Solution

The fourth proportional to 14,671.43, 20,220.14 and 10,686.23 is: 14,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.43 : 20,220.14 = 10,686.23 : x
  2. Step 2: Convert to fraction form
    14,671.43/20,220.14 = 10,686.23/x
  3. Step 3: Cross multiply
    14,671.43x = 20,220.14 × 10,686.23
  4. Step 4: Simplify right side
    14,671.43x = 216,077,013.24
  5. Step 5: Solve for x
    x = 216,077,013.24/14,671.43
  6. Step 6: Final answer
    x = 14,727.74

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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.