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Finding the Fourth Proportional to 19,608.66, 27,059.99 and 10,656.09

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Solution

The fourth proportional to 19,608.66, 27,059.99 and 10,656.09 is: 14,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.66 : 27,059.99 = 10,656.09 : x
  2. Step 2: Convert to fraction form
    19,608.66/27,059.99 = 10,656.09/x
  3. Step 3: Cross multiply
    19,608.66x = 27,059.99 × 10,656.09
  4. Step 4: Simplify right side
    19,608.66x = 288,353,635.56
  5. Step 5: Solve for x
    x = 288,353,635.56/19,608.66
  6. Step 6: Final answer
    x = 14,705.42

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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.