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Finding the Fourth Proportional to 26,487.76, 39,731.37 and 8,019.76

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Solution

The fourth proportional to 26,487.76, 39,731.37 and 8,019.76 is: 12,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,487.76 : 39,731.37 = 8,019.76 : x
  2. Step 2: Convert to fraction form
    26,487.76/39,731.37 = 8,019.76/x
  3. Step 3: Cross multiply
    26,487.76x = 39,731.37 × 8,019.76
  4. Step 4: Simplify right side
    26,487.76x = 318,636,051.87
  5. Step 5: Solve for x
    x = 318,636,051.87/26,487.76
  6. Step 6: Final answer
    x = 12,029.56

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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.