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Finding the Fourth Proportional to 62,441.76, 86,143.50 and 40,936.67

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Solution

The fourth proportional to 62,441.76, 86,143.50 and 40,936.67 is: 56,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,441.76 : 86,143.50 = 40,936.67 : x
  2. Step 2: Convert to fraction form
    62,441.76/86,143.50 = 40,936.67/x
  3. Step 3: Cross multiply
    62,441.76x = 86,143.50 × 40,936.67
  4. Step 4: Simplify right side
    62,441.76x = 3,526,427,601.43
  5. Step 5: Solve for x
    x = 3,526,427,601.43/62,441.76
  6. Step 6: Final answer
    x = 56,475.47

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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.