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Finding the Fourth Proportional to 38,894.70, 58,320.45 and 16,704.30

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Solution

The fourth proportional to 38,894.70, 58,320.45 and 16,704.30 is: 25,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,894.70 : 58,320.45 = 16,704.30 : x
  2. Step 2: Convert to fraction form
    38,894.70/58,320.45 = 16,704.30/x
  3. Step 3: Cross multiply
    38,894.70x = 58,320.45 × 16,704.30
  4. Step 4: Simplify right side
    38,894.70x = 974,202,292.94
  5. Step 5: Solve for x
    x = 974,202,292.94/38,894.70
  6. Step 6: Final answer
    x = 25,047.17

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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.