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Finding the Fourth Proportional to 67,219.16, 92,752.16 and 38,919.38

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Solution

The fourth proportional to 67,219.16, 92,752.16 and 38,919.38 is: 53,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,219.16 : 92,752.16 = 38,919.38 : x
  2. Step 2: Convert to fraction form
    67,219.16/92,752.16 = 38,919.38/x
  3. Step 3: Cross multiply
    67,219.16x = 92,752.16 × 38,919.38
  4. Step 4: Simplify right side
    67,219.16x = 3,609,855,902.50
  5. Step 5: Solve for x
    x = 3,609,855,902.50/67,219.16
  6. Step 6: Final answer
    x = 53,702.79

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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.