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Finding the Fourth Proportional to 18,034.80, 27,058.68 and 15,870.48

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Solution

The fourth proportional to 18,034.80, 27,058.68 and 15,870.48 is: 23,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,034.80 : 27,058.68 = 15,870.48 : x
  2. Step 2: Convert to fraction form
    18,034.80/27,058.68 = 15,870.48/x
  3. Step 3: Cross multiply
    18,034.80x = 27,058.68 × 15,870.48
  4. Step 4: Simplify right side
    18,034.80x = 429,434,239.77
  5. Step 5: Solve for x
    x = 429,434,239.77/18,034.80
  6. Step 6: Final answer
    x = 23,811.42

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1.5x scale

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.