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Finding the Fourth Proportional to 3,074.86, 4,243.14 and 1,748.38

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Solution

The fourth proportional to 3,074.86, 4,243.14 and 1,748.38 is: 2,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.86 : 4,243.14 = 1,748.38 : x
  2. Step 2: Convert to fraction form
    3,074.86/4,243.14 = 1,748.38/x
  3. Step 3: Cross multiply
    3,074.86x = 4,243.14 × 1,748.38
  4. Step 4: Simplify right side
    3,074.86x = 7,418,621.11
  5. Step 5: Solve for x
    x = 7,418,621.11/3,074.86
  6. Step 6: Final answer
    x = 2,412.67

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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.