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Finding the Fourth Proportional to 65,936.32, 98,920.04 and 21,562.90

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Solution

The fourth proportional to 65,936.32, 98,920.04 and 21,562.90 is: 32,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,936.32 : 98,920.04 = 21,562.90 : x
  2. Step 2: Convert to fraction form
    65,936.32/98,920.04 = 21,562.90/x
  3. Step 3: Cross multiply
    65,936.32x = 98,920.04 × 21,562.90
  4. Step 4: Simplify right side
    65,936.32x = 2,133,002,930.52
  5. Step 5: Solve for x
    x = 2,133,002,930.52/65,936.32
  6. Step 6: Final answer
    x = 32,349.44

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1.5x scale

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.