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Finding the Fourth Proportional to 6,936.31, 9,572.15 and 3,792.50

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Solution

The fourth proportional to 6,936.31, 9,572.15 and 3,792.50 is: 5,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.31 : 9,572.15 = 3,792.50 : x
  2. Step 2: Convert to fraction form
    6,936.31/9,572.15 = 3,792.50/x
  3. Step 3: Cross multiply
    6,936.31x = 9,572.15 × 3,792.50
  4. Step 4: Simplify right side
    6,936.31x = 36,302,378.88
  5. Step 5: Solve for x
    x = 36,302,378.88/6,936.31
  6. Step 6: Final answer
    x = 5,233.67

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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.