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Finding the Fourth Proportional to 55,842.21, 77,080.21 and 35,753.20

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Solution

The fourth proportional to 55,842.21, 77,080.21 and 35,753.20 is: 49,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,842.21 : 77,080.21 = 35,753.20 : x
  2. Step 2: Convert to fraction form
    55,842.21/77,080.21 = 35,753.20/x
  3. Step 3: Cross multiply
    55,842.21x = 77,080.21 × 35,753.20
  4. Step 4: Simplify right side
    55,842.21x = 2,755,863,882.09
  5. Step 5: Solve for x
    x = 2,755,863,882.09/55,842.21
  6. Step 6: Final answer
    x = 49,350.91

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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.