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Finding the Fourth Proportional to 45,269.80, 67,904.70 and 32,981.80

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Solution

The fourth proportional to 45,269.80, 67,904.70 and 32,981.80 is: 49,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,269.80 : 67,904.70 = 32,981.80 : x
  2. Step 2: Convert to fraction form
    45,269.80/67,904.70 = 32,981.80/x
  3. Step 3: Cross multiply
    45,269.80x = 67,904.70 × 32,981.80
  4. Step 4: Simplify right side
    45,269.80x = 2,239,619,234.46
  5. Step 5: Solve for x
    x = 2,239,619,234.46/45,269.80
  6. Step 6: Final answer
    x = 49,472.70

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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.