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Finding the Fourth Proportional to 19,242, 26,553.44 and 10,857.84

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Solution

The fourth proportional to 19,242, 26,553.44 and 10,857.84 is: 14,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242 : 26,553.44 = 10,857.84 : x
  2. Step 2: Convert to fraction form
    19,242/26,553.44 = 10,857.84/x
  3. Step 3: Cross multiply
    19,242x = 26,553.44 × 10,857.84
  4. Step 4: Simplify right side
    19,242x = 288,313,002.97
  5. Step 5: Solve for x
    x = 288,313,002.97/19,242
  6. Step 6: Final answer
    x = 14,983.53

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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.