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Finding the Fourth Proportional to 9,811.16, 14,717.46 and 2,885.96

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Solution

The fourth proportional to 9,811.16, 14,717.46 and 2,885.96 is: 4,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.16 : 14,717.46 = 2,885.96 : x
  2. Step 2: Convert to fraction form
    9,811.16/14,717.46 = 2,885.96/x
  3. Step 3: Cross multiply
    9,811.16x = 14,717.46 × 2,885.96
  4. Step 4: Simplify right side
    9,811.16x = 42,474,000.86
  5. Step 5: Solve for x
    x = 42,474,000.86/9,811.16
  6. Step 6: Final answer
    x = 4,329.15

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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.