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Finding the Fourth Proportional to 55,234.38, 76,132.38 and 39,080.82

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Solution

The fourth proportional to 55,234.38, 76,132.38 and 39,080.82 is: 53,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,234.38 : 76,132.38 = 39,080.82 : x
  2. Step 2: Convert to fraction form
    55,234.38/76,132.38 = 39,080.82/x
  3. Step 3: Cross multiply
    55,234.38x = 76,132.38 × 39,080.82
  4. Step 4: Simplify right side
    55,234.38x = 2,975,315,838.95
  5. Step 5: Solve for x
    x = 2,975,315,838.95/55,234.38
  6. Step 6: Final answer
    x = 53,867.10

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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.