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Finding the Fourth Proportional to 60,834.84, 91,257.66 and 21,392.28

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Solution

The fourth proportional to 60,834.84, 91,257.66 and 21,392.28 is: 32,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,834.84 : 91,257.66 = 21,392.28 : x
  2. Step 2: Convert to fraction form
    60,834.84/91,257.66 = 21,392.28/x
  3. Step 3: Cross multiply
    60,834.84x = 91,257.66 × 21,392.28
  4. Step 4: Simplify right side
    60,834.84x = 1,952,209,414.86
  5. Step 5: Solve for x
    x = 1,952,209,414.86/60,834.84
  6. Step 6: Final answer
    x = 32,090.32

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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.