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Finding the Fourth Proportional to 13,268.57, 19,893.63 and 5,868.99

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Solution

The fourth proportional to 13,268.57, 19,893.63 and 5,868.99 is: 8,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.57 : 19,893.63 = 5,868.99 : x
  2. Step 2: Convert to fraction form
    13,268.57/19,893.63 = 5,868.99/x
  3. Step 3: Cross multiply
    13,268.57x = 19,893.63 × 5,868.99
  4. Step 4: Simplify right side
    13,268.57x = 116,755,515.53
  5. Step 5: Solve for x
    x = 116,755,515.53/13,268.57
  6. Step 6: Final answer
    x = 8,799.40

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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.