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Finding the Fourth Proportional to 48,401.92, 66,794.64 and 28,254.88

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Solution

The fourth proportional to 48,401.92, 66,794.64 and 28,254.88 is: 38,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,401.92 : 66,794.64 = 28,254.88 : x
  2. Step 2: Convert to fraction form
    48,401.92/66,794.64 = 28,254.88/x
  3. Step 3: Cross multiply
    48,401.92x = 66,794.64 × 28,254.88
  4. Step 4: Simplify right side
    48,401.92x = 1,887,274,537.84
  5. Step 5: Solve for x
    x = 1,887,274,537.84/48,401.92
  6. Step 6: Final answer
    x = 38,991.73

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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.