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Finding the Fourth Proportional to 5,651.81, 7,799.69 and 3,134.16

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Solution

The fourth proportional to 5,651.81, 7,799.69 and 3,134.16 is: 4,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.81 : 7,799.69 = 3,134.16 : x
  2. Step 2: Convert to fraction form
    5,651.81/7,799.69 = 3,134.16/x
  3. Step 3: Cross multiply
    5,651.81x = 7,799.69 × 3,134.16
  4. Step 4: Simplify right side
    5,651.81x = 24,445,460.74
  5. Step 5: Solve for x
    x = 24,445,460.74/5,651.81
  6. Step 6: Final answer
    x = 4,325.25

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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.