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Finding the Fourth Proportional to 18,462.58, 25,462.28 and 11,287.06

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Solution

The fourth proportional to 18,462.58, 25,462.28 and 11,287.06 is: 15,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.58 : 25,462.28 = 11,287.06 : x
  2. Step 2: Convert to fraction form
    18,462.58/25,462.28 = 11,287.06/x
  3. Step 3: Cross multiply
    18,462.58x = 25,462.28 × 11,287.06
  4. Step 4: Simplify right side
    18,462.58x = 287,394,282.10
  5. Step 5: Solve for x
    x = 287,394,282.10/18,462.58
  6. Step 6: Final answer
    x = 15,566.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.