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Finding the Fourth Proportional to 25,450.76, 35,122.06 and 15,514.76

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Solution

The fourth proportional to 25,450.76, 35,122.06 and 15,514.76 is: 21,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,450.76 : 35,122.06 = 15,514.76 : x
  2. Step 2: Convert to fraction form
    25,450.76/35,122.06 = 15,514.76/x
  3. Step 3: Cross multiply
    25,450.76x = 35,122.06 × 15,514.76
  4. Step 4: Simplify right side
    25,450.76x = 544,910,331.61
  5. Step 5: Solve for x
    x = 544,910,331.61/25,450.76
  6. Step 6: Final answer
    x = 21,410.38

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Half scale
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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.