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Finding the Fourth Proportional to 1,467.93, 2,025.81 and 838.47

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Solution

The fourth proportional to 1,467.93, 2,025.81 and 838.47 is: 1,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.93 : 2,025.81 = 838.47 : x
  2. Step 2: Convert to fraction form
    1,467.93/2,025.81 = 838.47/x
  3. Step 3: Cross multiply
    1,467.93x = 2,025.81 × 838.47
  4. Step 4: Simplify right side
    1,467.93x = 1,698,580.91
  5. Step 5: Solve for x
    x = 1,698,580.91/1,467.93
  6. Step 6: Final answer
    x = 1,157.13

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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.