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Finding the Fourth Proportional to 29,322.72, 43,984.08 and 7,136.11

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Solution

The fourth proportional to 29,322.72, 43,984.08 and 7,136.11 is: 10,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,322.72 : 43,984.08 = 7,136.11 : x
  2. Step 2: Convert to fraction form
    29,322.72/43,984.08 = 7,136.11/x
  3. Step 3: Cross multiply
    29,322.72x = 43,984.08 × 7,136.11
  4. Step 4: Simplify right side
    29,322.72x = 313,875,233.13
  5. Step 5: Solve for x
    x = 313,875,233.13/29,322.72
  6. Step 6: Final answer
    x = 10,704.17

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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.