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Finding the Fourth Proportional to 19,452, 29,178 and 4,860

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Solution

The fourth proportional to 19,452, 29,178 and 4,860 is: 7,290

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,452 : 29,178 = 4,860 : x
  2. Step 2: Convert to fraction form
    19,452/29,178 = 4,860/x
  3. Step 3: Cross multiply
    19,452x = 29,178 × 4,860
  4. Step 4: Simplify right side
    19,452x = 141,805,080
  5. Step 5: Solve for x
    x = 141,805,080/19,452
  6. Step 6: Final answer
    x = 7,290

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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.