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Finding the Fourth Proportional to 15,058.67, 20,780.67 and 8,344.26

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Solution

The fourth proportional to 15,058.67, 20,780.67 and 8,344.26 is: 11,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.67 : 20,780.67 = 8,344.26 : x
  2. Step 2: Convert to fraction form
    15,058.67/20,780.67 = 8,344.26/x
  3. Step 3: Cross multiply
    15,058.67x = 20,780.67 × 8,344.26
  4. Step 4: Simplify right side
    15,058.67x = 173,399,313.45
  5. Step 5: Solve for x
    x = 173,399,313.45/15,058.67
  6. Step 6: Final answer
    x = 11,514.92

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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.