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Finding the Fourth Proportional to 14,781.31, 22,166.31 and 6,347.05

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Solution

The fourth proportional to 14,781.31, 22,166.31 and 6,347.05 is: 9,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.31 : 22,166.31 = 6,347.05 : x
  2. Step 2: Convert to fraction form
    14,781.31/22,166.31 = 6,347.05/x
  3. Step 3: Cross multiply
    14,781.31x = 22,166.31 × 6,347.05
  4. Step 4: Simplify right side
    14,781.31x = 140,690,677.89
  5. Step 5: Solve for x
    x = 140,690,677.89/14,781.31
  6. Step 6: Final answer
    x = 9,518.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.