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Finding the Fourth Proportional to 19,713.78, 29,559.73 and 6,558.97

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Solution

The fourth proportional to 19,713.78, 29,559.73 and 6,558.97 is: 9,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.78 : 29,559.73 = 6,558.97 : x
  2. Step 2: Convert to fraction form
    19,713.78/29,559.73 = 6,558.97/x
  3. Step 3: Cross multiply
    19,713.78x = 29,559.73 × 6,558.97
  4. Step 4: Simplify right side
    19,713.78x = 193,881,382.28
  5. Step 5: Solve for x
    x = 193,881,382.28/19,713.78
  6. Step 6: Final answer
    x = 9,834.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.