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Finding the Fourth Proportional to 67,798.59, 101,686.32 and 17,879.18

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Solution

The fourth proportional to 67,798.59, 101,686.32 and 17,879.18 is: 26,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,798.59 : 101,686.32 = 17,879.18 : x
  2. Step 2: Convert to fraction form
    67,798.59/101,686.32 = 17,879.18/x
  3. Step 3: Cross multiply
    67,798.59x = 101,686.32 × 17,879.18
  4. Step 4: Simplify right side
    67,798.59x = 1,818,067,510.39
  5. Step 5: Solve for x
    x = 1,818,067,510.39/67,798.59
  6. Step 6: Final answer
    x = 26,815.71

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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.