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Finding the Fourth Proportional to 3,955.65, 5,934.51 and 1,490.49

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Solution

The fourth proportional to 3,955.65, 5,934.51 and 1,490.49 is: 2,236.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.65 : 5,934.51 = 1,490.49 : x
  2. Step 2: Convert to fraction form
    3,955.65/5,934.51 = 1,490.49/x
  3. Step 3: Cross multiply
    3,955.65x = 5,934.51 × 1,490.49
  4. Step 4: Simplify right side
    3,955.65x = 8,845,327.81
  5. Step 5: Solve for x
    x = 8,845,327.81/3,955.65
  6. Step 6: Final answer
    x = 2,236.12

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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.