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Finding the Fourth Proportional to 19,448, 29,172 and 4,856

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Solution

The fourth proportional to 19,448, 29,172 and 4,856 is: 7,284

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,448 : 29,172 = 4,856 : x
  2. Step 2: Convert to fraction form
    19,448/29,172 = 4,856/x
  3. Step 3: Cross multiply
    19,448x = 29,172 × 4,856
  4. Step 4: Simplify right side
    19,448x = 141,659,232
  5. Step 5: Solve for x
    x = 141,659,232/19,448
  6. Step 6: Final answer
    x = 7,284

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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.