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Finding the Fourth Proportional to 10,983.70, 16,426.95 and 9,234.10

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Solution

The fourth proportional to 10,983.70, 16,426.95 and 9,234.10 is: 13,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.70 : 16,426.95 = 9,234.10 : x
  2. Step 2: Convert to fraction form
    10,983.70/16,426.95 = 9,234.10/x
  3. Step 3: Cross multiply
    10,983.70x = 16,426.95 × 9,234.10
  4. Step 4: Simplify right side
    10,983.70x = 151,688,099.00
  5. Step 5: Solve for x
    x = 151,688,099.00/10,983.70
  6. Step 6: Final answer
    x = 13,810.29

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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.