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Finding the Fourth Proportional to 57,395.90, 79,205.83 and 31,901.61

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Solution

The fourth proportional to 57,395.90, 79,205.83 and 31,901.61 is: 44,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,395.90 : 79,205.83 = 31,901.61 : x
  2. Step 2: Convert to fraction form
    57,395.90/79,205.83 = 31,901.61/x
  3. Step 3: Cross multiply
    57,395.90x = 79,205.83 × 31,901.61
  4. Step 4: Simplify right side
    57,395.90x = 2,526,793,715.65
  5. Step 5: Solve for x
    x = 2,526,793,715.65/57,395.90
  6. Step 6: Final answer
    x = 44,023.94

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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.