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Finding the Fourth Proportional to 19,304, 28,956 and 4,712

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Solution

The fourth proportional to 19,304, 28,956 and 4,712 is: 7,068

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304 : 28,956 = 4,712 : x
  2. Step 2: Convert to fraction form
    19,304/28,956 = 4,712/x
  3. Step 3: Cross multiply
    19,304x = 28,956 × 4,712
  4. Step 4: Simplify right side
    19,304x = 136,440,672
  5. Step 5: Solve for x
    x = 136,440,672/19,304
  6. Step 6: Final answer
    x = 7,068

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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.