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Finding the Fourth Proportional to 38,879.84, 58,274.88 and 16,660.16

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Solution

The fourth proportional to 38,879.84, 58,274.88 and 16,660.16 is: 24,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,879.84 : 58,274.88 = 16,660.16 : x
  2. Step 2: Convert to fraction form
    38,879.84/58,274.88 = 16,660.16/x
  3. Step 3: Cross multiply
    38,879.84x = 58,274.88 × 16,660.16
  4. Step 4: Simplify right side
    38,879.84x = 970,868,824.78
  5. Step 5: Solve for x
    x = 970,868,824.78/38,879.84
  6. Step 6: Final answer
    x = 24,971.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.