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Finding the Fourth Proportional to 13,899.94, 20,850.01 and 4,665.94

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Solution

The fourth proportional to 13,899.94, 20,850.01 and 4,665.94 is: 6,998.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.94 : 20,850.01 = 4,665.94 : x
  2. Step 2: Convert to fraction form
    13,899.94/20,850.01 = 4,665.94/x
  3. Step 3: Cross multiply
    13,899.94x = 20,850.01 × 4,665.94
  4. Step 4: Simplify right side
    13,899.94x = 97,284,831.87
  5. Step 5: Solve for x
    x = 97,284,831.87/13,899.94
  6. Step 6: Final answer
    x = 6,998.94

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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.