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Finding the Fourth Proportional to 67,012.16, 100,494.72 and 19,614.16

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Solution

The fourth proportional to 67,012.16, 100,494.72 and 19,614.16 is: 29,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,012.16 : 100,494.72 = 19,614.16 : x
  2. Step 2: Convert to fraction form
    67,012.16/100,494.72 = 19,614.16/x
  3. Step 3: Cross multiply
    67,012.16x = 100,494.72 × 19,614.16
  4. Step 4: Simplify right side
    67,012.16x = 1,971,119,517.24
  5. Step 5: Solve for x
    x = 1,971,119,517.24/67,012.16
  6. Step 6: Final answer
    x = 29,414.36

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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.