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Finding the Fourth Proportional to 7,361.55, 11,017.68 and 7,263.12

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Solution

The fourth proportional to 7,361.55, 11,017.68 and 7,263.12 is: 10,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.55 : 11,017.68 = 7,263.12 : x
  2. Step 2: Convert to fraction form
    7,361.55/11,017.68 = 7,263.12/x
  3. Step 3: Cross multiply
    7,361.55x = 11,017.68 × 7,263.12
  4. Step 4: Simplify right side
    7,361.55x = 80,022,731.96
  5. Step 5: Solve for x
    x = 80,022,731.96/7,361.55
  6. Step 6: Final answer
    x = 10,870.36

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1.5x scale

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.