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Finding the Fourth Proportional to 22,890.10, 34,335.15 and 7,309.30

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Solution

The fourth proportional to 22,890.10, 34,335.15 and 7,309.30 is: 10,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890.10 : 34,335.15 = 7,309.30 : x
  2. Step 2: Convert to fraction form
    22,890.10/34,335.15 = 7,309.30/x
  3. Step 3: Cross multiply
    22,890.10x = 34,335.15 × 7,309.30
  4. Step 4: Simplify right side
    22,890.10x = 250,965,911.90
  5. Step 5: Solve for x
    x = 250,965,911.90/22,890.10
  6. Step 6: Final answer
    x = 10,963.95

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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.