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Finding the Fourth Proportional to 27,648.80, 41,408.40 and 17,151.20

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Solution

The fourth proportional to 27,648.80, 41,408.40 and 17,151.20 is: 25,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.80 : 41,408.40 = 17,151.20 : x
  2. Step 2: Convert to fraction form
    27,648.80/41,408.40 = 17,151.20/x
  3. Step 3: Cross multiply
    27,648.80x = 41,408.40 × 17,151.20
  4. Step 4: Simplify right side
    27,648.80x = 710,203,750.08
  5. Step 5: Solve for x
    x = 710,203,750.08/27,648.80
  6. Step 6: Final answer
    x = 25,686.60

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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.