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Finding the Fourth Proportional to 3,431.99, 4,736.17 and 1,860.08

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Solution

The fourth proportional to 3,431.99, 4,736.17 and 1,860.08 is: 2,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.99 : 4,736.17 = 1,860.08 : x
  2. Step 2: Convert to fraction form
    3,431.99/4,736.17 = 1,860.08/x
  3. Step 3: Cross multiply
    3,431.99x = 4,736.17 × 1,860.08
  4. Step 4: Simplify right side
    3,431.99x = 8,809,645.79
  5. Step 5: Solve for x
    x = 8,809,645.79/3,431.99
  6. Step 6: Final answer
    x = 2,566.92

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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.