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Finding the Fourth Proportional to 29,047.91, 43,567.29 and 7,989.53

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Solution

The fourth proportional to 29,047.91, 43,567.29 and 7,989.53 is: 11,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,047.91 : 43,567.29 = 7,989.53 : x
  2. Step 2: Convert to fraction form
    29,047.91/43,567.29 = 7,989.53/x
  3. Step 3: Cross multiply
    29,047.91x = 43,567.29 × 7,989.53
  4. Step 4: Simplify right side
    29,047.91x = 348,081,952.64
  5. Step 5: Solve for x
    x = 348,081,952.64/29,047.91
  6. Step 6: Final answer
    x = 11,983.03

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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.