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Finding the Fourth Proportional to 65,181.51, 89,951.85 and 36,887.19

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Solution

The fourth proportional to 65,181.51, 89,951.85 and 36,887.19 is: 50,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,181.51 : 89,951.85 = 36,887.19 : x
  2. Step 2: Convert to fraction form
    65,181.51/89,951.85 = 36,887.19/x
  3. Step 3: Cross multiply
    65,181.51x = 89,951.85 × 36,887.19
  4. Step 4: Simplify right side
    65,181.51x = 3,318,070,981.80
  5. Step 5: Solve for x
    x = 3,318,070,981.80/65,181.51
  6. Step 6: Final answer
    x = 50,905.10

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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.