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Finding the Fourth Proportional to 14,983.97, 20,677.59 and 8,269.20

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Solution

The fourth proportional to 14,983.97, 20,677.59 and 8,269.20 is: 11,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,983.97 : 20,677.59 = 8,269.20 : x
  2. Step 2: Convert to fraction form
    14,983.97/20,677.59 = 8,269.20/x
  3. Step 3: Cross multiply
    14,983.97x = 20,677.59 × 8,269.20
  4. Step 4: Simplify right side
    14,983.97x = 170,987,127.23
  5. Step 5: Solve for x
    x = 170,987,127.23/14,983.97
  6. Step 6: Final answer
    x = 11,411.34

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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.