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Finding the Fourth Proportional to 19,505.98, 26,918.06 and 10,553.29

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Solution

The fourth proportional to 19,505.98, 26,918.06 and 10,553.29 is: 14,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.98 : 26,918.06 = 10,553.29 : x
  2. Step 2: Convert to fraction form
    19,505.98/26,918.06 = 10,553.29/x
  3. Step 3: Cross multiply
    19,505.98x = 26,918.06 × 10,553.29
  4. Step 4: Simplify right side
    19,505.98x = 284,073,973.36
  5. Step 5: Solve for x
    x = 284,073,973.36/19,505.98
  6. Step 6: Final answer
    x = 14,563.43

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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.