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Finding the Fourth Proportional to 3,950.79, 5,449.62 and 2,356.32

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Solution

The fourth proportional to 3,950.79, 5,449.62 and 2,356.32 is: 3,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.79 : 5,449.62 = 2,356.32 : x
  2. Step 2: Convert to fraction form
    3,950.79/5,449.62 = 2,356.32/x
  3. Step 3: Cross multiply
    3,950.79x = 5,449.62 × 2,356.32
  4. Step 4: Simplify right side
    3,950.79x = 12,841,036.82
  5. Step 5: Solve for x
    x = 12,841,036.82/3,950.79
  6. Step 6: Final answer
    x = 3,250.25

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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.