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Finding the Fourth Proportional to 10,863.13, 14,991.12 and 5,895.13

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Solution

The fourth proportional to 10,863.13, 14,991.12 and 5,895.13 is: 8,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.13 : 14,991.12 = 5,895.13 : x
  2. Step 2: Convert to fraction form
    10,863.13/14,991.12 = 5,895.13/x
  3. Step 3: Cross multiply
    10,863.13x = 14,991.12 × 5,895.13
  4. Step 4: Simplify right side
    10,863.13x = 88,374,601.25
  5. Step 5: Solve for x
    x = 88,374,601.25/10,863.13
  6. Step 6: Final answer
    x = 8,135.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.