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Finding the Fourth Proportional to 56,651.97, 84,901.39 and 21,572.49

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Solution

The fourth proportional to 56,651.97, 84,901.39 and 21,572.49 is: 32,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.97 : 84,901.39 = 21,572.49 : x
  2. Step 2: Convert to fraction form
    56,651.97/84,901.39 = 21,572.49/x
  3. Step 3: Cross multiply
    56,651.97x = 84,901.39 × 21,572.49
  4. Step 4: Simplify right side
    56,651.97x = 1,831,534,386.76
  5. Step 5: Solve for x
    x = 1,831,534,386.76/56,651.97
  6. Step 6: Final answer
    x = 32,329.58

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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.