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Finding the Fourth Proportional to 4,896, 7,344.12 and 1,248

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Solution

The fourth proportional to 4,896, 7,344.12 and 1,248 is: 1,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,896 : 7,344.12 = 1,248 : x
  2. Step 2: Convert to fraction form
    4,896/7,344.12 = 1,248/x
  3. Step 3: Cross multiply
    4,896x = 7,344.12 × 1,248
  4. Step 4: Simplify right side
    4,896x = 9,165,461.76
  5. Step 5: Solve for x
    x = 9,165,461.76/4,896
  6. Step 6: Final answer
    x = 1,872.03

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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.