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Finding the Fourth Proportional to 60,943.84, 91,360.86 and 21,493.96

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Solution

The fourth proportional to 60,943.84, 91,360.86 and 21,493.96 is: 32,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,943.84 : 91,360.86 = 21,493.96 : x
  2. Step 2: Convert to fraction form
    60,943.84/91,360.86 = 21,493.96/x
  3. Step 3: Cross multiply
    60,943.84x = 91,360.86 × 21,493.96
  4. Step 4: Simplify right side
    60,943.84x = 1,963,706,670.41
  5. Step 5: Solve for x
    x = 1,963,706,670.41/60,943.84
  6. Step 6: Final answer
    x = 32,221.58

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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.