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Finding the Fourth Proportional to 65,181.75, 89,950.82 and 36,887.51

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Solution

The fourth proportional to 65,181.75, 89,950.82 and 36,887.51 is: 50,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,181.75 : 89,950.82 = 36,887.51 : x
  2. Step 2: Convert to fraction form
    65,181.75/89,950.82 = 36,887.51/x
  3. Step 3: Cross multiply
    65,181.75x = 89,950.82 × 36,887.51
  4. Step 4: Simplify right side
    65,181.75x = 3,318,061,772.26
  5. Step 5: Solve for x
    x = 3,318,061,772.26/65,181.75
  6. Step 6: Final answer
    x = 50,904.77

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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.