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Finding the Fourth Proportional to 66,672.72, 92,017.00 and 38,002.68

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Solution

The fourth proportional to 66,672.72, 92,017.00 and 38,002.68 is: 52,448.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.72 : 92,017.00 = 38,002.68 : x
  2. Step 2: Convert to fraction form
    66,672.72/92,017.00 = 38,002.68/x
  3. Step 3: Cross multiply
    66,672.72x = 92,017.00 × 38,002.68
  4. Step 4: Simplify right side
    66,672.72x = 3,496,892,729.02
  5. Step 5: Solve for x
    x = 3,496,892,729.02/66,672.72
  6. Step 6: Final answer
    x = 52,448.63

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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.