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Finding the Fourth Proportional to 25,954.48, 35,818.48 and 15,879.76

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Solution

The fourth proportional to 25,954.48, 35,818.48 and 15,879.76 is: 21,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,954.48 : 35,818.48 = 15,879.76 : x
  2. Step 2: Convert to fraction form
    25,954.48/35,818.48 = 15,879.76/x
  3. Step 3: Cross multiply
    25,954.48x = 35,818.48 × 15,879.76
  4. Step 4: Simplify right side
    25,954.48x = 568,788,865.96
  5. Step 5: Solve for x
    x = 568,788,865.96/25,954.48
  6. Step 6: Final answer
    x = 21,914.86

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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.