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Finding the Fourth Proportional to 85,522.96, 128,296.50 and 26,363.44

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Solution

The fourth proportional to 85,522.96, 128,296.50 and 26,363.44 is: 39,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,522.96 : 128,296.50 = 26,363.44 : x
  2. Step 2: Convert to fraction form
    85,522.96/128,296.50 = 26,363.44/x
  3. Step 3: Cross multiply
    85,522.96x = 128,296.50 × 26,363.44
  4. Step 4: Simplify right side
    85,522.96x = 3,382,337,079.96
  5. Step 5: Solve for x
    x = 3,382,337,079.96/85,522.96
  6. Step 6: Final answer
    x = 39,548.88

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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.