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Finding the Fourth Proportional to 3,256, 4,884 and 1,432

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Solution

The fourth proportional to 3,256, 4,884 and 1,432 is: 2,148

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256 : 4,884 = 1,432 : x
  2. Step 2: Convert to fraction form
    3,256/4,884 = 1,432/x
  3. Step 3: Cross multiply
    3,256x = 4,884 × 1,432
  4. Step 4: Simplify right side
    3,256x = 6,993,888
  5. Step 5: Solve for x
    x = 6,993,888/3,256
  6. Step 6: Final answer
    x = 2,148

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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.