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Finding the Fourth Proportional to 12,065.76, 16,649.15 and 6,760.67

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Solution

The fourth proportional to 12,065.76, 16,649.15 and 6,760.67 is: 9,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.76 : 16,649.15 = 6,760.67 : x
  2. Step 2: Convert to fraction form
    12,065.76/16,649.15 = 6,760.67/x
  3. Step 3: Cross multiply
    12,065.76x = 16,649.15 × 6,760.67
  4. Step 4: Simplify right side
    12,065.76x = 112,559,291.88
  5. Step 5: Solve for x
    x = 112,559,291.88/12,065.76
  6. Step 6: Final answer
    x = 9,328.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.