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Finding the Fourth Proportional to 29,572.35, 40,800.07 and 19,505.80

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Solution

The fourth proportional to 29,572.35, 40,800.07 and 19,505.80 is: 26,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,572.35 : 40,800.07 = 19,505.80 : x
  2. Step 2: Convert to fraction form
    29,572.35/40,800.07 = 19,505.80/x
  3. Step 3: Cross multiply
    29,572.35x = 40,800.07 × 19,505.80
  4. Step 4: Simplify right side
    29,572.35x = 795,838,005.41
  5. Step 5: Solve for x
    x = 795,838,005.41/29,572.35
  6. Step 6: Final answer
    x = 26,911.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.