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Finding the Fourth Proportional to 48,508.40, 66,940.88 and 27,287.68

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Solution

The fourth proportional to 48,508.40, 66,940.88 and 27,287.68 is: 37,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,508.40 : 66,940.88 = 27,287.68 : x
  2. Step 2: Convert to fraction form
    48,508.40/66,940.88 = 27,287.68/x
  3. Step 3: Cross multiply
    48,508.40x = 66,940.88 × 27,287.68
  4. Step 4: Simplify right side
    48,508.40x = 1,826,661,312.36
  5. Step 5: Solve for x
    x = 1,826,661,312.36/48,508.40
  6. Step 6: Final answer
    x = 37,656.60

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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.