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Finding the Fourth Proportional to 5,651.90, 7,799.45 and 3,412.95

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Solution

The fourth proportional to 5,651.90, 7,799.45 and 3,412.95 is: 4,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.90 : 7,799.45 = 3,412.95 : x
  2. Step 2: Convert to fraction form
    5,651.90/7,799.45 = 3,412.95/x
  3. Step 3: Cross multiply
    5,651.90x = 7,799.45 × 3,412.95
  4. Step 4: Simplify right side
    5,651.90x = 26,619,132.88
  5. Step 5: Solve for x
    x = 26,619,132.88/5,651.90
  6. Step 6: Final answer
    x = 4,709.77

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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.