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Finding the Fourth Proportional to 55,879.68, 77,145.84 and 37,042.32

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Solution

The fourth proportional to 55,879.68, 77,145.84 and 37,042.32 is: 51,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,879.68 : 77,145.84 = 37,042.32 : x
  2. Step 2: Convert to fraction form
    55,879.68/77,145.84 = 37,042.32/x
  3. Step 3: Cross multiply
    55,879.68x = 77,145.84 × 37,042.32
  4. Step 4: Simplify right side
    55,879.68x = 2,857,660,891.95
  5. Step 5: Solve for x
    x = 2,857,660,891.95/55,879.68
  6. Step 6: Final answer
    x = 51,139.54

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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.