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Finding the Fourth Proportional to 12,952, 19,428 and 4,744

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Solution

The fourth proportional to 12,952, 19,428 and 4,744 is: 7,116

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952 : 19,428 = 4,744 : x
  2. Step 2: Convert to fraction form
    12,952/19,428 = 4,744/x
  3. Step 3: Cross multiply
    12,952x = 19,428 × 4,744
  4. Step 4: Simplify right side
    12,952x = 92,166,432
  5. Step 5: Solve for x
    x = 92,166,432/12,952
  6. Step 6: Final answer
    x = 7,116

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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.