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Finding the Fourth Proportional to 52,851.48, 79,288.92 and 17,790

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Solution

The fourth proportional to 52,851.48, 79,288.92 and 17,790 is: 26,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,851.48 : 79,288.92 = 17,790 : x
  2. Step 2: Convert to fraction form
    52,851.48/79,288.92 = 17,790/x
  3. Step 3: Cross multiply
    52,851.48x = 79,288.92 × 17,790
  4. Step 4: Simplify right side
    52,851.48x = 1,410,549,886.80
  5. Step 5: Solve for x
    x = 1,410,549,886.80/52,851.48
  6. Step 6: Final answer
    x = 26,688.94

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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.