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Finding the Fourth Proportional to 29,743.12, 44,621.28 and 8,965.12

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Solution

The fourth proportional to 29,743.12, 44,621.28 and 8,965.12 is: 13,449.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,743.12 : 44,621.28 = 8,965.12 : x
  2. Step 2: Convert to fraction form
    29,743.12/44,621.28 = 8,965.12/x
  3. Step 3: Cross multiply
    29,743.12x = 44,621.28 × 8,965.12
  4. Step 4: Simplify right side
    29,743.12x = 400,035,129.75
  5. Step 5: Solve for x
    x = 400,035,129.75/29,743.12
  6. Step 6: Final answer
    x = 13,449.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.