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Finding the Fourth Proportional to 60,671.84, 91,048.73 and 21,229.29

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Solution

The fourth proportional to 60,671.84, 91,048.73 and 21,229.29 is: 31,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,671.84 : 91,048.73 = 21,229.29 : x
  2. Step 2: Convert to fraction form
    60,671.84/91,048.73 = 21,229.29/x
  3. Step 3: Cross multiply
    60,671.84x = 91,048.73 × 21,229.29
  4. Step 4: Simplify right side
    60,671.84x = 1,932,899,787.16
  5. Step 5: Solve for x
    x = 1,932,899,787.16/60,671.84
  6. Step 6: Final answer
    x = 31,858.27

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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.