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Finding the Fourth Proportional to 26,642.25, 36,769.95 and 15,464.25

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Solution

The fourth proportional to 26,642.25, 36,769.95 and 15,464.25 is: 21,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.25 : 36,769.95 = 15,464.25 : x
  2. Step 2: Convert to fraction form
    26,642.25/36,769.95 = 15,464.25/x
  3. Step 3: Cross multiply
    26,642.25x = 36,769.95 × 15,464.25
  4. Step 4: Simplify right side
    26,642.25x = 568,619,699.29
  5. Step 5: Solve for x
    x = 568,619,699.29/26,642.25
  6. Step 6: Final answer
    x = 21,342.78

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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.