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Finding the Fourth Proportional to 3,457.44, 5,186.13 and 992.46

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Solution

The fourth proportional to 3,457.44, 5,186.13 and 992.46 is: 1,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.44 : 5,186.13 = 992.46 : x
  2. Step 2: Convert to fraction form
    3,457.44/5,186.13 = 992.46/x
  3. Step 3: Cross multiply
    3,457.44x = 5,186.13 × 992.46
  4. Step 4: Simplify right side
    3,457.44x = 5,147,026.58
  5. Step 5: Solve for x
    x = 5,147,026.58/3,457.44
  6. Step 6: Final answer
    x = 1,488.68

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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.