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Finding the Fourth Proportional to 15,053.44, 20,773.92 and 8,766.40

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Solution

The fourth proportional to 15,053.44, 20,773.92 and 8,766.40 is: 12,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.44 : 20,773.92 = 8,766.40 : x
  2. Step 2: Convert to fraction form
    15,053.44/20,773.92 = 8,766.40/x
  3. Step 3: Cross multiply
    15,053.44x = 20,773.92 × 8,766.40
  4. Step 4: Simplify right side
    15,053.44x = 182,112,492.29
  5. Step 5: Solve for x
    x = 182,112,492.29/15,053.44
  6. Step 6: Final answer
    x = 12,097.73

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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.