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Finding the Fourth Proportional to 2,396.78, 3,595.18 and 1,423.70

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Solution

The fourth proportional to 2,396.78, 3,595.18 and 1,423.70 is: 2,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,396.78 : 3,595.18 = 1,423.70 : x
  2. Step 2: Convert to fraction form
    2,396.78/3,595.18 = 1,423.70/x
  3. Step 3: Cross multiply
    2,396.78x = 3,595.18 × 1,423.70
  4. Step 4: Simplify right side
    2,396.78x = 5,118,457.77
  5. Step 5: Solve for x
    x = 5,118,457.77/2,396.78
  6. Step 6: Final answer
    x = 2,135.56

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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.