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Finding the Fourth Proportional to 61,861.65, 85,364.38 and 36,369.06

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Solution

The fourth proportional to 61,861.65, 85,364.38 and 36,369.06 is: 50,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,861.65 : 85,364.38 = 36,369.06 : x
  2. Step 2: Convert to fraction form
    61,861.65/85,364.38 = 36,369.06/x
  3. Step 3: Cross multiply
    61,861.65x = 85,364.38 × 36,369.06
  4. Step 4: Simplify right side
    61,861.65x = 3,104,622,258.08
  5. Step 5: Solve for x
    x = 3,104,622,258.08/61,861.65
  6. Step 6: Final answer
    x = 50,186.54

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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.