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Finding the Fourth Proportional to 83,808.30, 115,662.03 and 48,009.85

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Solution

The fourth proportional to 83,808.30, 115,662.03 and 48,009.85 is: 66,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,808.30 : 115,662.03 = 48,009.85 : x
  2. Step 2: Convert to fraction form
    83,808.30/115,662.03 = 48,009.85/x
  3. Step 3: Cross multiply
    83,808.30x = 115,662.03 × 48,009.85
  4. Step 4: Simplify right side
    83,808.30x = 5,552,916,241.80
  5. Step 5: Solve for x
    x = 5,552,916,241.80/83,808.30
  6. Step 6: Final answer
    x = 66,257.35

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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.