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Finding the Fourth Proportional to 52,873.29, 79,307.64 and 17,812.80

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Solution

The fourth proportional to 52,873.29, 79,307.64 and 17,812.80 is: 26,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,873.29 : 79,307.64 = 17,812.80 : x
  2. Step 2: Convert to fraction form
    52,873.29/79,307.64 = 17,812.80/x
  3. Step 3: Cross multiply
    52,873.29x = 79,307.64 × 17,812.80
  4. Step 4: Simplify right side
    52,873.29x = 1,412,691,129.79
  5. Step 5: Solve for x
    x = 1,412,691,129.79/52,873.29
  6. Step 6: Final answer
    x = 26,718.43

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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.