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Finding the Fourth Proportional to 19,673.70, 29,510.55 and 16,611.90

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Solution

The fourth proportional to 19,673.70, 29,510.55 and 16,611.90 is: 24,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.70 : 29,510.55 = 16,611.90 : x
  2. Step 2: Convert to fraction form
    19,673.70/29,510.55 = 16,611.90/x
  3. Step 3: Cross multiply
    19,673.70x = 29,510.55 × 16,611.90
  4. Step 4: Simplify right side
    19,673.70x = 490,226,305.55
  5. Step 5: Solve for x
    x = 490,226,305.55/19,673.70
  6. Step 6: Final answer
    x = 24,917.85

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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.