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Finding the Fourth Proportional to 52,066.40, 71,851.52 and 28,193.00

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Solution

The fourth proportional to 52,066.40, 71,851.52 and 28,193.00 is: 38,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,066.40 : 71,851.52 = 28,193.00 : x
  2. Step 2: Convert to fraction form
    52,066.40/71,851.52 = 28,193.00/x
  3. Step 3: Cross multiply
    52,066.40x = 71,851.52 × 28,193.00
  4. Step 4: Simplify right side
    52,066.40x = 2,025,709,614.58
  5. Step 5: Solve for x
    x = 2,025,709,614.58/52,066.40
  6. Step 6: Final answer
    x = 38,906.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.