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Finding the Fourth Proportional to 11,361.12, 17,041.32 and 3,570

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Solution

The fourth proportional to 11,361.12, 17,041.32 and 3,570 is: 5,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.12 : 17,041.32 = 3,570 : x
  2. Step 2: Convert to fraction form
    11,361.12/17,041.32 = 3,570/x
  3. Step 3: Cross multiply
    11,361.12x = 17,041.32 × 3,570
  4. Step 4: Simplify right side
    11,361.12x = 60,837,512.40
  5. Step 5: Solve for x
    x = 60,837,512.40/11,361.12
  6. Step 6: Final answer
    x = 5,354.89

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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.