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Finding the Fourth Proportional to 32,990.70, 49,486.05 and 8,366.70

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Solution

The fourth proportional to 32,990.70, 49,486.05 and 8,366.70 is: 12,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,990.70 : 49,486.05 = 8,366.70 : x
  2. Step 2: Convert to fraction form
    32,990.70/49,486.05 = 8,366.70/x
  3. Step 3: Cross multiply
    32,990.70x = 49,486.05 × 8,366.70
  4. Step 4: Simplify right side
    32,990.70x = 414,034,934.54
  5. Step 5: Solve for x
    x = 414,034,934.54/32,990.70
  6. Step 6: Final answer
    x = 12,550.05

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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.