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Finding the Fourth Proportional to 61,776.75, 85,251.36 and 34,552.80

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Solution

The fourth proportional to 61,776.75, 85,251.36 and 34,552.80 is: 47,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,776.75 : 85,251.36 = 34,552.80 : x
  2. Step 2: Convert to fraction form
    61,776.75/85,251.36 = 34,552.80/x
  3. Step 3: Cross multiply
    61,776.75x = 85,251.36 × 34,552.80
  4. Step 4: Simplify right side
    61,776.75x = 2,945,673,191.81
  5. Step 5: Solve for x
    x = 2,945,673,191.81/61,776.75
  6. Step 6: Final answer
    x = 47,682.55

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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.