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Finding the Fourth Proportional to 27,765.91, 41,648.88 and 6,989.41

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Solution

The fourth proportional to 27,765.91, 41,648.88 and 6,989.41 is: 10,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.91 : 41,648.88 = 6,989.41 : x
  2. Step 2: Convert to fraction form
    27,765.91/41,648.88 = 6,989.41/x
  3. Step 3: Cross multiply
    27,765.91x = 41,648.88 × 6,989.41
  4. Step 4: Simplify right side
    27,765.91x = 291,101,098.36
  5. Step 5: Solve for x
    x = 291,101,098.36/27,765.91
  6. Step 6: Final answer
    x = 10,484.12

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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.