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Finding the Fourth Proportional to 10,955.87, 16,394.90 and 8,026.91

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Solution

The fourth proportional to 10,955.87, 16,394.90 and 8,026.91 is: 12,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.87 : 16,394.90 = 8,026.91 : x
  2. Step 2: Convert to fraction form
    10,955.87/16,394.90 = 8,026.91/x
  3. Step 3: Cross multiply
    10,955.87x = 16,394.90 × 8,026.91
  4. Step 4: Simplify right side
    10,955.87x = 131,600,264.65
  5. Step 5: Solve for x
    x = 131,600,264.65/10,955.87
  6. Step 6: Final answer
    x = 12,011.86

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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.