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Finding the Fourth Proportional to 61,750.40, 92,616.96 and 20,192

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Solution

The fourth proportional to 61,750.40, 92,616.96 and 20,192 is: 30,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,750.40 : 92,616.96 = 20,192 : x
  2. Step 2: Convert to fraction form
    61,750.40/92,616.96 = 20,192/x
  3. Step 3: Cross multiply
    61,750.40x = 92,616.96 × 20,192
  4. Step 4: Simplify right side
    61,750.40x = 1,870,121,656.32
  5. Step 5: Solve for x
    x = 1,870,121,656.32/61,750.40
  6. Step 6: Final answer
    x = 30,285.17

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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.