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Finding the Fourth Proportional to 15,959.43, 22,020.93 and 8,885.84

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Solution

The fourth proportional to 15,959.43, 22,020.93 and 8,885.84 is: 12,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.43 : 22,020.93 = 8,885.84 : x
  2. Step 2: Convert to fraction form
    15,959.43/22,020.93 = 8,885.84/x
  3. Step 3: Cross multiply
    15,959.43x = 22,020.93 × 8,885.84
  4. Step 4: Simplify right side
    15,959.43x = 195,674,350.53
  5. Step 5: Solve for x
    x = 195,674,350.53/15,959.43
  6. Step 6: Final answer
    x = 12,260.74

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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.