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Finding the Fourth Proportional to 9,982.53, 13,775.99 and 5,506.45

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Solution

The fourth proportional to 9,982.53, 13,775.99 and 5,506.45 is: 7,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.53 : 13,775.99 = 5,506.45 : x
  2. Step 2: Convert to fraction form
    9,982.53/13,775.99 = 5,506.45/x
  3. Step 3: Cross multiply
    9,982.53x = 13,775.99 × 5,506.45
  4. Step 4: Simplify right side
    9,982.53x = 75,856,800.14
  5. Step 5: Solve for x
    x = 75,856,800.14/9,982.53
  6. Step 6: Final answer
    x = 7,598.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.