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Finding the Fourth Proportional to 48,187, 66,539.10 and 30,311.92

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Solution

The fourth proportional to 48,187, 66,539.10 and 30,311.92 is: 41,856.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,187 : 66,539.10 = 30,311.92 : x
  2. Step 2: Convert to fraction form
    48,187/66,539.10 = 30,311.92/x
  3. Step 3: Cross multiply
    48,187x = 66,539.10 × 30,311.92
  4. Step 4: Simplify right side
    48,187x = 2,016,927,876.07
  5. Step 5: Solve for x
    x = 2,016,927,876.07/48,187
  6. Step 6: Final answer
    x = 41,856.27

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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.