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Finding the Fourth Proportional to 34,280.80, 51,424.98 and 10,901.78

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Solution

The fourth proportional to 34,280.80, 51,424.98 and 10,901.78 is: 16,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,280.80 : 51,424.98 = 10,901.78 : x
  2. Step 2: Convert to fraction form
    34,280.80/51,424.98 = 10,901.78/x
  3. Step 3: Cross multiply
    34,280.80x = 51,424.98 × 10,901.78
  4. Step 4: Simplify right side
    34,280.80x = 560,623,818.46
  5. Step 5: Solve for x
    x = 560,623,818.46/34,280.80
  6. Step 6: Final answer
    x = 16,353.87

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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.