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Finding the Fourth Proportional to 29,287.70, 43,931.15 and 7,101.26

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Solution

The fourth proportional to 29,287.70, 43,931.15 and 7,101.26 is: 10,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.70 : 43,931.15 = 7,101.26 : x
  2. Step 2: Convert to fraction form
    29,287.70/43,931.15 = 7,101.26/x
  3. Step 3: Cross multiply
    29,287.70x = 43,931.15 × 7,101.26
  4. Step 4: Simplify right side
    29,287.70x = 311,966,518.25
  5. Step 5: Solve for x
    x = 311,966,518.25/29,287.70
  6. Step 6: Final answer
    x = 10,651.79

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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.