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Finding the Fourth Proportional to 10,887.80, 16,318.04 and 5,889.97

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Solution

The fourth proportional to 10,887.80, 16,318.04 and 5,889.97 is: 8,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.80 : 16,318.04 = 5,889.97 : x
  2. Step 2: Convert to fraction form
    10,887.80/16,318.04 = 5,889.97/x
  3. Step 3: Cross multiply
    10,887.80x = 16,318.04 × 5,889.97
  4. Step 4: Simplify right side
    10,887.80x = 96,112,695.81
  5. Step 5: Solve for x
    x = 96,112,695.81/10,887.80
  6. Step 6: Final answer
    x = 8,827.56

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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.