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Finding the Fourth Proportional to 55,339.91, 76,400.57 and 36,531.71

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Solution

The fourth proportional to 55,339.91, 76,400.57 and 36,531.71 is: 50,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,339.91 : 76,400.57 = 36,531.71 : x
  2. Step 2: Convert to fraction form
    55,339.91/76,400.57 = 36,531.71/x
  3. Step 3: Cross multiply
    55,339.91x = 76,400.57 × 36,531.71
  4. Step 4: Simplify right side
    55,339.91x = 2,791,043,257.41
  5. Step 5: Solve for x
    x = 2,791,043,257.41/55,339.91
  6. Step 6: Final answer
    x = 50,434.55

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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.