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Finding the Fourth Proportional to 29,130, 43,695.12 and 10,662

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Solution

The fourth proportional to 29,130, 43,695.12 and 10,662 is: 15,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,130 : 43,695.12 = 10,662 : x
  2. Step 2: Convert to fraction form
    29,130/43,695.12 = 10,662/x
  3. Step 3: Cross multiply
    29,130x = 43,695.12 × 10,662
  4. Step 4: Simplify right side
    29,130x = 465,877,369.44
  5. Step 5: Solve for x
    x = 465,877,369.44/29,130
  6. Step 6: Final answer
    x = 15,993.04

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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.