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Finding the Fourth Proportional to 23,105.41, 34,490.95 and 20,302.88

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Solution

The fourth proportional to 23,105.41, 34,490.95 and 20,302.88 is: 30,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,105.41 : 34,490.95 = 20,302.88 : x
  2. Step 2: Convert to fraction form
    23,105.41/34,490.95 = 20,302.88/x
  3. Step 3: Cross multiply
    23,105.41x = 34,490.95 × 20,302.88
  4. Step 4: Simplify right side
    23,105.41x = 700,265,618.94
  5. Step 5: Solve for x
    x = 700,265,618.94/23,105.41
  6. Step 6: Final answer
    x = 30,307.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.