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Finding the Fourth Proportional to 52,762.30, 79,131.03 and 15,312.49

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Solution

The fourth proportional to 52,762.30, 79,131.03 and 15,312.49 is: 22,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,762.30 : 79,131.03 = 15,312.49 : x
  2. Step 2: Convert to fraction form
    52,762.30/79,131.03 = 15,312.49/x
  3. Step 3: Cross multiply
    52,762.30x = 79,131.03 × 15,312.49
  4. Step 4: Simplify right side
    52,762.30x = 1,211,693,105.56
  5. Step 5: Solve for x
    x = 1,211,693,105.56/52,762.30
  6. Step 6: Final answer
    x = 22,965.13

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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.