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Finding the Fourth Proportional to 15,035.58, 20,753.28 and 8,749.17

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Solution

The fourth proportional to 15,035.58, 20,753.28 and 8,749.17 is: 12,076.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.58 : 20,753.28 = 8,749.17 : x
  2. Step 2: Convert to fraction form
    15,035.58/20,753.28 = 8,749.17/x
  3. Step 3: Cross multiply
    15,035.58x = 20,753.28 × 8,749.17
  4. Step 4: Simplify right side
    15,035.58x = 181,573,974.78
  5. Step 5: Solve for x
    x = 181,573,974.78/15,035.58
  6. Step 6: Final answer
    x = 12,076.29

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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.