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Finding the Fourth Proportional to 26,448.23, 39,672.48 and 8,918.21

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Solution

The fourth proportional to 26,448.23, 39,672.48 and 8,918.21 is: 13,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,448.23 : 39,672.48 = 8,918.21 : x
  2. Step 2: Convert to fraction form
    26,448.23/39,672.48 = 8,918.21/x
  3. Step 3: Cross multiply
    26,448.23x = 39,672.48 × 8,918.21
  4. Step 4: Simplify right side
    26,448.23x = 353,807,507.86
  5. Step 5: Solve for x
    x = 353,807,507.86/26,448.23
  6. Step 6: Final answer
    x = 13,377.36

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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.