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Finding the Fourth Proportional to 9,693.84, 14,543.19 and 3,119.88

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Solution

The fourth proportional to 9,693.84, 14,543.19 and 3,119.88 is: 4,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,693.84 : 14,543.19 = 3,119.88 : x
  2. Step 2: Convert to fraction form
    9,693.84/14,543.19 = 3,119.88/x
  3. Step 3: Cross multiply
    9,693.84x = 14,543.19 × 3,119.88
  4. Step 4: Simplify right side
    9,693.84x = 45,373,007.62
  5. Step 5: Solve for x
    x = 45,373,007.62/9,693.84
  6. Step 6: Final answer
    x = 4,680.60

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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.