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Finding the Fourth Proportional to 67,080.68, 100,642.08 and 27,656.36

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Solution

The fourth proportional to 67,080.68, 100,642.08 and 27,656.36 is: 41,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,080.68 : 100,642.08 = 27,656.36 : x
  2. Step 2: Convert to fraction form
    67,080.68/100,642.08 = 27,656.36/x
  3. Step 3: Cross multiply
    67,080.68x = 100,642.08 × 27,656.36
  4. Step 4: Simplify right side
    67,080.68x = 2,783,393,595.63
  5. Step 5: Solve for x
    x = 2,783,393,595.63/67,080.68
  6. Step 6: Final answer
    x = 41,493.22

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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.