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Finding the Fourth Proportional to 1,467.35, 2,025.36 and 838.22

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Solution

The fourth proportional to 1,467.35, 2,025.36 and 838.22 is: 1,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.35 : 2,025.36 = 838.22 : x
  2. Step 2: Convert to fraction form
    1,467.35/2,025.36 = 838.22/x
  3. Step 3: Cross multiply
    1,467.35x = 2,025.36 × 838.22
  4. Step 4: Simplify right side
    1,467.35x = 1,697,687.13
  5. Step 5: Solve for x
    x = 1,697,687.13/1,467.35
  6. Step 6: Final answer
    x = 1,156.98

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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.