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Finding the Fourth Proportional to 67,520.66, 101,200.09 and 31,448.49

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Solution

The fourth proportional to 67,520.66, 101,200.09 and 31,448.49 is: 47,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,520.66 : 101,200.09 = 31,448.49 : x
  2. Step 2: Convert to fraction form
    67,520.66/101,200.09 = 31,448.49/x
  3. Step 3: Cross multiply
    67,520.66x = 101,200.09 × 31,448.49
  4. Step 4: Simplify right side
    67,520.66x = 3,182,589,530.76
  5. Step 5: Solve for x
    x = 3,182,589,530.76/67,520.66
  6. Step 6: Final answer
    x = 47,135.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.