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Finding the Fourth Proportional to 17,842.08, 26,726.78 and 8,453.64

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Solution

The fourth proportional to 17,842.08, 26,726.78 and 8,453.64 is: 12,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,842.08 : 26,726.78 = 8,453.64 : x
  2. Step 2: Convert to fraction form
    17,842.08/26,726.78 = 8,453.64/x
  3. Step 3: Cross multiply
    17,842.08x = 26,726.78 × 8,453.64
  4. Step 4: Simplify right side
    17,842.08x = 225,938,576.48
  5. Step 5: Solve for x
    x = 225,938,576.48/17,842.08
  6. Step 6: Final answer
    x = 12,663.24

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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.