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Finding the Fourth Proportional to 60,960.69, 91,411.88 and 25,881.21

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Solution

The fourth proportional to 60,960.69, 91,411.88 and 25,881.21 is: 38,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,960.69 : 91,411.88 = 25,881.21 : x
  2. Step 2: Convert to fraction form
    60,960.69/91,411.88 = 25,881.21/x
  3. Step 3: Cross multiply
    60,960.69x = 91,411.88 × 25,881.21
  4. Step 4: Simplify right side
    60,960.69x = 2,365,849,933.37
  5. Step 5: Solve for x
    x = 2,365,849,933.37/60,960.69
  6. Step 6: Final answer
    x = 38,809.43

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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.