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Finding the Fourth Proportional to 29,138.74, 43,699.91 and 8,073.68

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Solution

The fourth proportional to 29,138.74, 43,699.91 and 8,073.68 is: 12,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.74 : 43,699.91 = 8,073.68 : x
  2. Step 2: Convert to fraction form
    29,138.74/43,699.91 = 8,073.68/x
  3. Step 3: Cross multiply
    29,138.74x = 43,699.91 × 8,073.68
  4. Step 4: Simplify right side
    29,138.74x = 352,818,830.50
  5. Step 5: Solve for x
    x = 352,818,830.50/29,138.74
  6. Step 6: Final answer
    x = 12,108.24

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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.