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Finding the Fourth Proportional to 10,170.99, 15,259.73 and 8,099.01

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Solution

The fourth proportional to 10,170.99, 15,259.73 and 8,099.01 is: 12,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.99 : 15,259.73 = 8,099.01 : x
  2. Step 2: Convert to fraction form
    10,170.99/15,259.73 = 8,099.01/x
  3. Step 3: Cross multiply
    10,170.99x = 15,259.73 × 8,099.01
  4. Step 4: Simplify right side
    10,170.99x = 123,588,665.37
  5. Step 5: Solve for x
    x = 123,588,665.37/10,170.99
  6. Step 6: Final answer
    x = 12,151.09

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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.