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Finding the Fourth Proportional to 67,879.10, 101,818.65 and 23,491.10

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Solution

The fourth proportional to 67,879.10, 101,818.65 and 23,491.10 is: 35,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.10 : 101,818.65 = 23,491.10 : x
  2. Step 2: Convert to fraction form
    67,879.10/101,818.65 = 23,491.10/x
  3. Step 3: Cross multiply
    67,879.10x = 101,818.65 × 23,491.10
  4. Step 4: Simplify right side
    67,879.10x = 2,391,832,089.02
  5. Step 5: Solve for x
    x = 2,391,832,089.02/67,879.10
  6. Step 6: Final answer
    x = 35,236.65

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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.