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Finding the Fourth Proportional to 11,361.40, 17,038.98 and 7,195.16

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Solution

The fourth proportional to 11,361.40, 17,038.98 and 7,195.16 is: 10,790.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.40 : 17,038.98 = 7,195.16 : x
  2. Step 2: Convert to fraction form
    11,361.40/17,038.98 = 7,195.16/x
  3. Step 3: Cross multiply
    11,361.40x = 17,038.98 × 7,195.16
  4. Step 4: Simplify right side
    11,361.40x = 122,598,187.34
  5. Step 5: Solve for x
    x = 122,598,187.34/11,361.40
  6. Step 6: Final answer
    x = 10,790.76

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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.