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Finding the Fourth Proportional to 22,963.40, 34,454.70 and 7,385.80

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Solution

The fourth proportional to 22,963.40, 34,454.70 and 7,385.80 is: 11,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,963.40 : 34,454.70 = 7,385.80 : x
  2. Step 2: Convert to fraction form
    22,963.40/34,454.70 = 7,385.80/x
  3. Step 3: Cross multiply
    22,963.40x = 34,454.70 × 7,385.80
  4. Step 4: Simplify right side
    22,963.40x = 254,475,523.26
  5. Step 5: Solve for x
    x = 254,475,523.26/22,963.40
  6. Step 6: Final answer
    x = 11,081.79

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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.