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Finding the Fourth Proportional to 61,874.91, 85,322.82 and 36,719.55

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Solution

The fourth proportional to 61,874.91, 85,322.82 and 36,719.55 is: 50,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,874.91 : 85,322.82 = 36,719.55 : x
  2. Step 2: Convert to fraction form
    61,874.91/85,322.82 = 36,719.55/x
  3. Step 3: Cross multiply
    61,874.91x = 85,322.82 × 36,719.55
  4. Step 4: Simplify right side
    61,874.91x = 3,133,015,555.13
  5. Step 5: Solve for x
    x = 3,133,015,555.13/61,874.91
  6. Step 6: Final answer
    x = 50,634.67

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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.