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Finding the Fourth Proportional to 19,505.71, 26,917.87 and 10,553.22

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Solution

The fourth proportional to 19,505.71, 26,917.87 and 10,553.22 is: 14,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.71 : 26,917.87 = 10,553.22 : x
  2. Step 2: Convert to fraction form
    19,505.71/26,917.87 = 10,553.22/x
  3. Step 3: Cross multiply
    19,505.71x = 26,917.87 × 10,553.22
  4. Step 4: Simplify right side
    19,505.71x = 284,070,204.04
  5. Step 5: Solve for x
    x = 284,070,204.04/19,505.71
  6. Step 6: Final answer
    x = 14,563.44

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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.