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Finding the Fourth Proportional to 25,873.92, 35,709.89 and 15,808.19

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Solution

The fourth proportional to 25,873.92, 35,709.89 and 15,808.19 is: 21,817.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,873.92 : 35,709.89 = 15,808.19 : x
  2. Step 2: Convert to fraction form
    25,873.92/35,709.89 = 15,808.19/x
  3. Step 3: Cross multiply
    25,873.92x = 35,709.89 × 15,808.19
  4. Step 4: Simplify right side
    25,873.92x = 564,508,468.41
  5. Step 5: Solve for x
    x = 564,508,468.41/25,873.92
  6. Step 6: Final answer
    x = 21,817.66

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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.