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Finding the Fourth Proportional to 4,637.91, 6,976.31 and 3,860.31

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Solution

The fourth proportional to 4,637.91, 6,976.31 and 3,860.31 is: 5,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,637.91 : 6,976.31 = 3,860.31 : x
  2. Step 2: Convert to fraction form
    4,637.91/6,976.31 = 3,860.31/x
  3. Step 3: Cross multiply
    4,637.91x = 6,976.31 × 3,860.31
  4. Step 4: Simplify right side
    4,637.91x = 26,930,699.95
  5. Step 5: Solve for x
    x = 26,930,699.95/4,637.91
  6. Step 6: Final answer
    x = 5,806.65

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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.