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Finding the Fourth Proportional to 2,357.91, 3,537.51 and 1,186.50

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Solution

The fourth proportional to 2,357.91, 3,537.51 and 1,186.50 is: 1,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,357.91 : 3,537.51 = 1,186.50 : x
  2. Step 2: Convert to fraction form
    2,357.91/3,537.51 = 1,186.50/x
  3. Step 3: Cross multiply
    2,357.91x = 3,537.51 × 1,186.50
  4. Step 4: Simplify right side
    2,357.91x = 4,197,255.62
  5. Step 5: Solve for x
    x = 4,197,255.62/2,357.91
  6. Step 6: Final answer
    x = 1,780.07

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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.