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Finding the Fourth Proportional to 29,429.80, 44,195.90 and 15,605.80

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Solution

The fourth proportional to 29,429.80, 44,195.90 and 15,605.80 is: 23,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.80 : 44,195.90 = 15,605.80 : x
  2. Step 2: Convert to fraction form
    29,429.80/44,195.90 = 15,605.80/x
  3. Step 3: Cross multiply
    29,429.80x = 44,195.90 × 15,605.80
  4. Step 4: Simplify right side
    29,429.80x = 689,712,376.22
  5. Step 5: Solve for x
    x = 689,712,376.22/29,429.80
  6. Step 6: Final answer
    x = 23,435.85

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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.