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Finding the Fourth Proportional to 60,938.28, 91,401.66 and 19,377.96

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Solution

The fourth proportional to 60,938.28, 91,401.66 and 19,377.96 is: 29,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,938.28 : 91,401.66 = 19,377.96 : x
  2. Step 2: Convert to fraction form
    60,938.28/91,401.66 = 19,377.96/x
  3. Step 3: Cross multiply
    60,938.28x = 91,401.66 × 19,377.96
  4. Step 4: Simplify right side
    60,938.28x = 1,771,177,711.41
  5. Step 5: Solve for x
    x = 1,771,177,711.41/60,938.28
  6. Step 6: Final answer
    x = 29,065.11

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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.