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Finding the Fourth Proportional to 52,325.88, 78,488.82 and 15,389.88

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Solution

The fourth proportional to 52,325.88, 78,488.82 and 15,389.88 is: 23,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,325.88 : 78,488.82 = 15,389.88 : x
  2. Step 2: Convert to fraction form
    52,325.88/78,488.82 = 15,389.88/x
  3. Step 3: Cross multiply
    52,325.88x = 78,488.82 × 15,389.88
  4. Step 4: Simplify right side
    52,325.88x = 1,207,933,521.14
  5. Step 5: Solve for x
    x = 1,207,933,521.14/52,325.88
  6. Step 6: Final answer
    x = 23,084.82

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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.