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Finding the Fourth Proportional to 52,668.68, 79,026.75 and 28,660.28

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Solution

The fourth proportional to 52,668.68, 79,026.75 and 28,660.28 is: 43,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,668.68 : 79,026.75 = 28,660.28 : x
  2. Step 2: Convert to fraction form
    52,668.68/79,026.75 = 28,660.28/x
  3. Step 3: Cross multiply
    52,668.68x = 79,026.75 × 28,660.28
  4. Step 4: Simplify right side
    52,668.68x = 2,264,928,387.36
  5. Step 5: Solve for x
    x = 2,264,928,387.36/52,668.68
  6. Step 6: Final answer
    x = 43,003.33

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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.