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Finding the Fourth Proportional to 67,080.83, 100,620.22 and 17,160.50

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Solution

The fourth proportional to 67,080.83, 100,620.22 and 17,160.50 is: 25,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,080.83 : 100,620.22 = 17,160.50 : x
  2. Step 2: Convert to fraction form
    67,080.83/100,620.22 = 17,160.50/x
  3. Step 3: Cross multiply
    67,080.83x = 100,620.22 × 17,160.50
  4. Step 4: Simplify right side
    67,080.83x = 1,726,693,477.87
  5. Step 5: Solve for x
    x = 1,726,693,477.87/67,080.83
  6. Step 6: Final answer
    x = 25,740.49

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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.