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Finding the Fourth Proportional to 57,340.98, 79,133.21 and 31,847.47

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Solution

The fourth proportional to 57,340.98, 79,133.21 and 31,847.47 is: 43,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,340.98 : 79,133.21 = 31,847.47 : x
  2. Step 2: Convert to fraction form
    57,340.98/79,133.21 = 31,847.47/x
  3. Step 3: Cross multiply
    57,340.98x = 79,133.21 × 31,847.47
  4. Step 4: Simplify right side
    57,340.98x = 2,520,192,531.48
  5. Step 5: Solve for x
    x = 2,520,192,531.48/57,340.98
  6. Step 6: Final answer
    x = 43,950.98

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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.