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Finding the Fourth Proportional to 55,639.71, 76,809.87 and 37,494.90

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Solution

The fourth proportional to 55,639.71, 76,809.87 and 37,494.90 is: 51,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639.71 : 76,809.87 = 37,494.90 : x
  2. Step 2: Convert to fraction form
    55,639.71/76,809.87 = 37,494.90/x
  3. Step 3: Cross multiply
    55,639.71x = 76,809.87 × 37,494.90
  4. Step 4: Simplify right side
    55,639.71x = 2,879,978,394.66
  5. Step 5: Solve for x
    x = 2,879,978,394.66/55,639.71
  6. Step 6: Final answer
    x = 51,761.20

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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.