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Finding the Fourth Proportional to 48,369.75, 66,696.37 and 31,351.65

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Solution

The fourth proportional to 48,369.75, 66,696.37 and 31,351.65 is: 43,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,369.75 : 66,696.37 = 31,351.65 : x
  2. Step 2: Convert to fraction form
    48,369.75/66,696.37 = 31,351.65/x
  3. Step 3: Cross multiply
    48,369.75x = 66,696.37 × 31,351.65
  4. Step 4: Simplify right side
    48,369.75x = 2,091,041,248.51
  5. Step 5: Solve for x
    x = 2,091,041,248.51/48,369.75
  6. Step 6: Final answer
    x = 43,230.35

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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.