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Finding the Fourth Proportional to 6,992.70, 9,649.08 and 4,160.16

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Solution

The fourth proportional to 6,992.70, 9,649.08 and 4,160.16 is: 5,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.70 : 9,649.08 = 4,160.16 : x
  2. Step 2: Convert to fraction form
    6,992.70/9,649.08 = 4,160.16/x
  3. Step 3: Cross multiply
    6,992.70x = 9,649.08 × 4,160.16
  4. Step 4: Simplify right side
    6,992.70x = 40,141,716.65
  5. Step 5: Solve for x
    x = 40,141,716.65/6,992.70
  6. Step 6: Final answer
    x = 5,740.52

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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.