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Finding the Fourth Proportional to 9,678.88, 14,512.92 and 4,737.88

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Solution

The fourth proportional to 9,678.88, 14,512.92 and 4,737.88 is: 7,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.88 : 14,512.92 = 4,737.88 : x
  2. Step 2: Convert to fraction form
    9,678.88/14,512.92 = 4,737.88/x
  3. Step 3: Cross multiply
    9,678.88x = 14,512.92 × 4,737.88
  4. Step 4: Simplify right side
    9,678.88x = 68,760,473.41
  5. Step 5: Solve for x
    x = 68,760,473.41/9,678.88
  6. Step 6: Final answer
    x = 7,104.18

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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.