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Finding the Fourth Proportional to 52,661.40, 79,002.90 and 17,626.20

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Solution

The fourth proportional to 52,661.40, 79,002.90 and 17,626.20 is: 26,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,661.40 : 79,002.90 = 17,626.20 : x
  2. Step 2: Convert to fraction form
    52,661.40/79,002.90 = 17,626.20/x
  3. Step 3: Cross multiply
    52,661.40x = 79,002.90 × 17,626.20
  4. Step 4: Simplify right side
    52,661.40x = 1,392,520,915.98
  5. Step 5: Solve for x
    x = 1,392,520,915.98/52,661.40
  6. Step 6: Final answer
    x = 26,442.91

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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.