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Finding the Fourth Proportional to 14,649.42, 20,216.22 and 7,935.12

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Solution

The fourth proportional to 14,649.42, 20,216.22 and 7,935.12 is: 10,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.42 : 20,216.22 = 7,935.12 : x
  2. Step 2: Convert to fraction form
    14,649.42/20,216.22 = 7,935.12/x
  3. Step 3: Cross multiply
    14,649.42x = 20,216.22 × 7,935.12
  4. Step 4: Simplify right side
    14,649.42x = 160,418,131.65
  5. Step 5: Solve for x
    x = 160,418,131.65/14,649.42
  6. Step 6: Final answer
    x = 10,950.48

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Double scale
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Similar ratio
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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.