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Finding the Fourth Proportional to 19,793.40, 29,657.70 and 16,488.60

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Solution

The fourth proportional to 19,793.40, 29,657.70 and 16,488.60 is: 24,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.40 : 29,657.70 = 16,488.60 : x
  2. Step 2: Convert to fraction form
    19,793.40/29,657.70 = 16,488.60/x
  3. Step 3: Cross multiply
    19,793.40x = 29,657.70 × 16,488.60
  4. Step 4: Simplify right side
    19,793.40x = 489,013,952.22
  5. Step 5: Solve for x
    x = 489,013,952.22/19,793.40
  6. Step 6: Final answer
    x = 24,705.91

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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.