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Finding the Fourth Proportional to 52,680.61, 79,019.78 and 14,728.87

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Solution

The fourth proportional to 52,680.61, 79,019.78 and 14,728.87 is: 22,092.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680.61 : 79,019.78 = 14,728.87 : x
  2. Step 2: Convert to fraction form
    52,680.61/79,019.78 = 14,728.87/x
  3. Step 3: Cross multiply
    52,680.61x = 79,019.78 × 14,728.87
  4. Step 4: Simplify right side
    52,680.61x = 1,163,872,067.05
  5. Step 5: Solve for x
    x = 1,163,872,067.05/52,680.61
  6. Step 6: Final answer
    x = 22,092.99

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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.