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Finding the Fourth Proportional to 19,250.55, 28,866.96 and 7,997.81

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Solution

The fourth proportional to 19,250.55, 28,866.96 and 7,997.81 is: 11,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,250.55 : 28,866.96 = 7,997.81 : x
  2. Step 2: Convert to fraction form
    19,250.55/28,866.96 = 7,997.81/x
  3. Step 3: Cross multiply
    19,250.55x = 28,866.96 × 7,997.81
  4. Step 4: Simplify right side
    19,250.55x = 230,872,317.02
  5. Step 5: Solve for x
    x = 230,872,317.02/19,250.55
  6. Step 6: Final answer
    x = 11,993.02

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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.