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Finding the Fourth Proportional to 48,728.90, 67,245.16 and 27,218.95

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Solution

The fourth proportional to 48,728.90, 67,245.16 and 27,218.95 is: 37,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.90 : 67,245.16 = 27,218.95 : x
  2. Step 2: Convert to fraction form
    48,728.90/67,245.16 = 27,218.95/x
  3. Step 3: Cross multiply
    48,728.90x = 67,245.16 × 27,218.95
  4. Step 4: Simplify right side
    48,728.90x = 1,830,342,175.46
  5. Step 5: Solve for x
    x = 1,830,342,175.46/48,728.90
  6. Step 6: Final answer
    x = 37,561.74

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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.