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Finding the Fourth Proportional to 17,652.76, 26,479.14 and 7,127.56

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Solution

The fourth proportional to 17,652.76, 26,479.14 and 7,127.56 is: 10,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,652.76 : 26,479.14 = 7,127.56 : x
  2. Step 2: Convert to fraction form
    17,652.76/26,479.14 = 7,127.56/x
  3. Step 3: Cross multiply
    17,652.76x = 26,479.14 × 7,127.56
  4. Step 4: Simplify right side
    17,652.76x = 188,731,659.10
  5. Step 5: Solve for x
    x = 188,731,659.10/17,652.76
  6. Step 6: Final answer
    x = 10,691.34

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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.