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Finding the Fourth Proportional to 66,462.53, 91,717.62 and 38,168.42

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Solution

The fourth proportional to 66,462.53, 91,717.62 and 38,168.42 is: 52,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.53 : 91,717.62 = 38,168.42 : x
  2. Step 2: Convert to fraction form
    66,462.53/91,717.62 = 38,168.42/x
  3. Step 3: Cross multiply
    66,462.53x = 91,717.62 × 38,168.42
  4. Step 4: Simplify right side
    66,462.53x = 3,500,716,641.56
  5. Step 5: Solve for x
    x = 3,500,716,641.56/66,462.53
  6. Step 6: Final answer
    x = 52,672.03

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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.