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Finding the Fourth Proportional to 47,728.91, 65,866.68 and 26,220.65

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Solution

The fourth proportional to 47,728.91, 65,866.68 and 26,220.65 is: 36,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.91 : 65,866.68 = 26,220.65 : x
  2. Step 2: Convert to fraction form
    47,728.91/65,866.68 = 26,220.65/x
  3. Step 3: Cross multiply
    47,728.91x = 65,866.68 × 26,220.65
  4. Step 4: Simplify right side
    47,728.91x = 1,727,067,162.94
  5. Step 5: Solve for x
    x = 1,727,067,162.94/47,728.91
  6. Step 6: Final answer
    x = 36,184.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.