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Finding the Fourth Proportional to 39,361.88, 59,030.03 and 13,059.56

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Solution

The fourth proportional to 39,361.88, 59,030.03 and 13,059.56 is: 19,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,361.88 : 59,030.03 = 13,059.56 : x
  2. Step 2: Convert to fraction form
    39,361.88/59,030.03 = 13,059.56/x
  3. Step 3: Cross multiply
    39,361.88x = 59,030.03 × 13,059.56
  4. Step 4: Simplify right side
    39,361.88x = 770,906,398.81
  5. Step 5: Solve for x
    x = 770,906,398.81/39,361.88
  6. Step 6: Final answer
    x = 19,585.10

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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.