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Finding the Fourth Proportional to 15,034.46, 20,756.97 and 9,659.07

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Solution

The fourth proportional to 15,034.46, 20,756.97 and 9,659.07 is: 13,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.46 : 20,756.97 = 9,659.07 : x
  2. Step 2: Convert to fraction form
    15,034.46/20,756.97 = 9,659.07/x
  3. Step 3: Cross multiply
    15,034.46x = 20,756.97 × 9,659.07
  4. Step 4: Simplify right side
    15,034.46x = 200,493,026.22
  5. Step 5: Solve for x
    x = 200,493,026.22/15,034.46
  6. Step 6: Final answer
    x = 13,335.57

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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.