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Finding the Fourth Proportional to 65,920.70, 98,879.98 and 16,001.20

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Solution

The fourth proportional to 65,920.70, 98,879.98 and 16,001.20 is: 24,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.70 : 98,879.98 = 16,001.20 : x
  2. Step 2: Convert to fraction form
    65,920.70/98,879.98 = 16,001.20/x
  3. Step 3: Cross multiply
    65,920.70x = 98,879.98 × 16,001.20
  4. Step 4: Simplify right side
    65,920.70x = 1,582,198,335.98
  5. Step 5: Solve for x
    x = 1,582,198,335.98/65,920.70
  6. Step 6: Final answer
    x = 24,001.54

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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.