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Finding the Fourth Proportional to 19,662.26, 27,133.73 and 10,709.74

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Solution

The fourth proportional to 19,662.26, 27,133.73 and 10,709.74 is: 14,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.26 : 27,133.73 = 10,709.74 : x
  2. Step 2: Convert to fraction form
    19,662.26/27,133.73 = 10,709.74/x
  3. Step 3: Cross multiply
    19,662.26x = 27,133.73 × 10,709.74
  4. Step 4: Simplify right side
    19,662.26x = 290,595,193.53
  5. Step 5: Solve for x
    x = 290,595,193.53/19,662.26
  6. Step 6: Final answer
    x = 14,779.34

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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.