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Finding the Fourth Proportional to 29,150.72, 43,726.72 and 11,628.80

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Solution

The fourth proportional to 29,150.72, 43,726.72 and 11,628.80 is: 17,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,150.72 : 43,726.72 = 11,628.80 : x
  2. Step 2: Convert to fraction form
    29,150.72/43,726.72 = 11,628.80/x
  3. Step 3: Cross multiply
    29,150.72x = 43,726.72 × 11,628.80
  4. Step 4: Simplify right side
    29,150.72x = 508,489,281.54
  5. Step 5: Solve for x
    x = 508,489,281.54/29,150.72
  6. Step 6: Final answer
    x = 17,443.46

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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.