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Finding the Fourth Proportional to 39,884.96, 59,844.72 and 21,395.36

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Solution

The fourth proportional to 39,884.96, 59,844.72 and 21,395.36 is: 32,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.96 : 59,844.72 = 21,395.36 : x
  2. Step 2: Convert to fraction form
    39,884.96/59,844.72 = 21,395.36/x
  3. Step 3: Cross multiply
    39,884.96x = 59,844.72 × 21,395.36
  4. Step 4: Simplify right side
    39,884.96x = 1,280,399,328.50
  5. Step 5: Solve for x
    x = 1,280,399,328.50/39,884.96
  6. Step 6: Final answer
    x = 32,102.31

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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.