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Finding the Fourth Proportional to 48,482.74, 66,890.10 and 39,514.83

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Solution

The fourth proportional to 48,482.74, 66,890.10 and 39,514.83 is: 54,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,482.74 : 66,890.10 = 39,514.83 : x
  2. Step 2: Convert to fraction form
    48,482.74/66,890.10 = 39,514.83/x
  3. Step 3: Cross multiply
    48,482.74x = 66,890.10 × 39,514.83
  4. Step 4: Simplify right side
    48,482.74x = 2,643,150,930.18
  5. Step 5: Solve for x
    x = 2,643,150,930.18/48,482.74
  6. Step 6: Final answer
    x = 54,517.36

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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.