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Finding the Fourth Proportional to 52,814.96, 79,218.48 and 15,375.32

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Solution

The fourth proportional to 52,814.96, 79,218.48 and 15,375.32 is: 23,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,814.96 : 79,218.48 = 15,375.32 : x
  2. Step 2: Convert to fraction form
    52,814.96/79,218.48 = 15,375.32/x
  3. Step 3: Cross multiply
    52,814.96x = 79,218.48 × 15,375.32
  4. Step 4: Simplify right side
    52,814.96x = 1,218,009,479.91
  5. Step 5: Solve for x
    x = 1,218,009,479.91/52,814.96
  6. Step 6: Final answer
    x = 23,061.83

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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.