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Finding the Fourth Proportional to 49,455.80, 68,211.78 and 34,348.49

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Solution

The fourth proportional to 49,455.80, 68,211.78 and 34,348.49 is: 47,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,455.80 : 68,211.78 = 34,348.49 : x
  2. Step 2: Convert to fraction form
    49,455.80/68,211.78 = 34,348.49/x
  3. Step 3: Cross multiply
    49,455.80x = 68,211.78 × 34,348.49
  4. Step 4: Simplify right side
    49,455.80x = 2,342,971,643.21
  5. Step 5: Solve for x
    x = 2,342,971,643.21/49,455.80
  6. Step 6: Final answer
    x = 47,375.06

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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.