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Finding the Fourth Proportional to 12,995.67, 17,934.18 and 7,027.46

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Solution

The fourth proportional to 12,995.67, 17,934.18 and 7,027.46 is: 9,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.67 : 17,934.18 = 7,027.46 : x
  2. Step 2: Convert to fraction form
    12,995.67/17,934.18 = 7,027.46/x
  3. Step 3: Cross multiply
    12,995.67x = 17,934.18 × 7,027.46
  4. Step 4: Simplify right side
    12,995.67x = 126,031,683.81
  5. Step 5: Solve for x
    x = 126,031,683.81/12,995.67
  6. Step 6: Final answer
    x = 9,697.97

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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.