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Finding the Fourth Proportional to 2,184.32, 3,014.32 and 1,189.56

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Solution

The fourth proportional to 2,184.32, 3,014.32 and 1,189.56 is: 1,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.32 : 3,014.32 = 1,189.56 : x
  2. Step 2: Convert to fraction form
    2,184.32/3,014.32 = 1,189.56/x
  3. Step 3: Cross multiply
    2,184.32x = 3,014.32 × 1,189.56
  4. Step 4: Simplify right side
    2,184.32x = 3,585,714.50
  5. Step 5: Solve for x
    x = 3,585,714.50/2,184.32
  6. Step 6: Final answer
    x = 1,641.57

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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.