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Finding the Fourth Proportional to 29,313.66, 43,969.89 and 7,127.16

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Solution

The fourth proportional to 29,313.66, 43,969.89 and 7,127.16 is: 10,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,313.66 : 43,969.89 = 7,127.16 : x
  2. Step 2: Convert to fraction form
    29,313.66/43,969.89 = 7,127.16/x
  3. Step 3: Cross multiply
    29,313.66x = 43,969.89 × 7,127.16
  4. Step 4: Simplify right side
    29,313.66x = 313,380,441.21
  5. Step 5: Solve for x
    x = 313,380,441.21/29,313.66
  6. Step 6: Final answer
    x = 10,690.59

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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.