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Finding the Fourth Proportional to 65,192.12, 89,970.89 and 36,511.34

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Solution

The fourth proportional to 65,192.12, 89,970.89 and 36,511.34 is: 50,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.12 : 89,970.89 = 36,511.34 : x
  2. Step 2: Convert to fraction form
    65,192.12/89,970.89 = 36,511.34/x
  3. Step 3: Cross multiply
    65,192.12x = 89,970.89 × 36,511.34
  4. Step 4: Simplify right side
    65,192.12x = 3,284,957,628.57
  5. Step 5: Solve for x
    x = 3,284,957,628.57/65,192.12
  6. Step 6: Final answer
    x = 50,388.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.