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Finding the Fourth Proportional to 48,309.65, 66,654.70 and 27,886.72

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Solution

The fourth proportional to 48,309.65, 66,654.70 and 27,886.72 is: 38,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.65 : 66,654.70 = 27,886.72 : x
  2. Step 2: Convert to fraction form
    48,309.65/66,654.70 = 27,886.72/x
  3. Step 3: Cross multiply
    48,309.65x = 66,654.70 × 27,886.72
  4. Step 4: Simplify right side
    48,309.65x = 1,858,780,719.23
  5. Step 5: Solve for x
    x = 1,858,780,719.23/48,309.65
  6. Step 6: Final answer
    x = 38,476.38

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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.