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Finding the Fourth Proportional to 8,063.65, 12,023.34 and 7,940.63

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Solution

The fourth proportional to 8,063.65, 12,023.34 and 7,940.63 is: 11,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,063.65 : 12,023.34 = 7,940.63 : x
  2. Step 2: Convert to fraction form
    8,063.65/12,023.34 = 7,940.63/x
  3. Step 3: Cross multiply
    8,063.65x = 12,023.34 × 7,940.63
  4. Step 4: Simplify right side
    8,063.65x = 95,472,894.59
  5. Step 5: Solve for x
    x = 95,472,894.59/8,063.65
  6. Step 6: Final answer
    x = 11,839.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.