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Finding the Fourth Proportional to 48,305.92, 66,662.88 and 28,162.24

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Solution

The fourth proportional to 48,305.92, 66,662.88 and 28,162.24 is: 38,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,305.92 : 66,662.88 = 28,162.24 : x
  2. Step 2: Convert to fraction form
    48,305.92/66,662.88 = 28,162.24/x
  3. Step 3: Cross multiply
    48,305.92x = 66,662.88 × 28,162.24
  4. Step 4: Simplify right side
    48,305.92x = 1,877,376,025.65
  5. Step 5: Solve for x
    x = 1,877,376,025.65/48,305.92
  6. Step 6: Final answer
    x = 38,864.31

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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.