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Finding the Fourth Proportional to 19,165, 26,447.73 and 10,666.48

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Solution

The fourth proportional to 19,165, 26,447.73 and 10,666.48 is: 14,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165 : 26,447.73 = 10,666.48 : x
  2. Step 2: Convert to fraction form
    19,165/26,447.73 = 10,666.48/x
  3. Step 3: Cross multiply
    19,165x = 26,447.73 × 10,666.48
  4. Step 4: Simplify right side
    19,165x = 282,104,183.09
  5. Step 5: Solve for x
    x = 282,104,183.09/19,165
  6. Step 6: Final answer
    x = 14,719.76

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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.