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Finding the Fourth Proportional to 25,817.96, 38,723.22 and 8,285.51

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Solution

The fourth proportional to 25,817.96, 38,723.22 and 8,285.51 is: 12,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,817.96 : 38,723.22 = 8,285.51 : x
  2. Step 2: Convert to fraction form
    25,817.96/38,723.22 = 8,285.51/x
  3. Step 3: Cross multiply
    25,817.96x = 38,723.22 × 8,285.51
  4. Step 4: Simplify right side
    25,817.96x = 320,841,432.93
  5. Step 5: Solve for x
    x = 320,841,432.93/25,817.96
  6. Step 6: Final answer
    x = 12,427.07

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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.