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Finding the Fourth Proportional to 29,989.80, 41,385.06 and 16,560.06

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Solution

The fourth proportional to 29,989.80, 41,385.06 and 16,560.06 is: 22,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,989.80 : 41,385.06 = 16,560.06 : x
  2. Step 2: Convert to fraction form
    29,989.80/41,385.06 = 16,560.06/x
  3. Step 3: Cross multiply
    29,989.80x = 41,385.06 × 16,560.06
  4. Step 4: Simplify right side
    29,989.80x = 685,339,076.70
  5. Step 5: Solve for x
    x = 685,339,076.70/29,989.80
  6. Step 6: Final answer
    x = 22,852.41

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1.5x scale

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.