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Finding the Fourth Proportional to 39,851.70, 59,772.53 and 11,771.22

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Solution

The fourth proportional to 39,851.70, 59,772.53 and 11,771.22 is: 17,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.70 : 59,772.53 = 11,771.22 : x
  2. Step 2: Convert to fraction form
    39,851.70/59,772.53 = 11,771.22/x
  3. Step 3: Cross multiply
    39,851.70x = 59,772.53 × 11,771.22
  4. Step 4: Simplify right side
    39,851.70x = 703,595,854.16
  5. Step 5: Solve for x
    x = 703,595,854.16/39,851.70
  6. Step 6: Final answer
    x = 17,655.36

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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.