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Finding the Fourth Proportional to 52,379.64, 72,287.76 and 29,722.52

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Solution

The fourth proportional to 52,379.64, 72,287.76 and 29,722.52 is: 41,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,379.64 : 72,287.76 = 29,722.52 : x
  2. Step 2: Convert to fraction form
    52,379.64/72,287.76 = 29,722.52/x
  3. Step 3: Cross multiply
    52,379.64x = 72,287.76 × 29,722.52
  4. Step 4: Simplify right side
    52,379.64x = 2,148,574,392.36
  5. Step 5: Solve for x
    x = 2,148,574,392.36/52,379.64
  6. Step 6: Final answer
    x = 41,019.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.