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Finding the Fourth Proportional to 22,034.80, 30,408.06 and 11,963.25

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Solution

The fourth proportional to 22,034.80, 30,408.06 and 11,963.25 is: 16,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,034.80 : 30,408.06 = 11,963.25 : x
  2. Step 2: Convert to fraction form
    22,034.80/30,408.06 = 11,963.25/x
  3. Step 3: Cross multiply
    22,034.80x = 30,408.06 × 11,963.25
  4. Step 4: Simplify right side
    22,034.80x = 363,779,223.80
  5. Step 5: Solve for x
    x = 363,779,223.80/22,034.80
  6. Step 6: Final answer
    x = 16,509.30

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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.