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Finding the Fourth Proportional to 9,988.44, 14,982.72 and 4,065.44

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Solution

The fourth proportional to 9,988.44, 14,982.72 and 4,065.44 is: 6,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.44 : 14,982.72 = 4,065.44 : x
  2. Step 2: Convert to fraction form
    9,988.44/14,982.72 = 4,065.44/x
  3. Step 3: Cross multiply
    9,988.44x = 14,982.72 × 4,065.44
  4. Step 4: Simplify right side
    9,988.44x = 60,911,349.20
  5. Step 5: Solve for x
    x = 60,911,349.20/9,988.44
  6. Step 6: Final answer
    x = 6,098.18

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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.