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Finding the Fourth Proportional to 19,655.97, 29,436.79 and 17,291.96

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Solution

The fourth proportional to 19,655.97, 29,436.79 and 17,291.96 is: 25,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.97 : 29,436.79 = 17,291.96 : x
  2. Step 2: Convert to fraction form
    19,655.97/29,436.79 = 17,291.96/x
  3. Step 3: Cross multiply
    19,655.97x = 29,436.79 × 17,291.96
  4. Step 4: Simplify right side
    19,655.97x = 509,019,795.21
  5. Step 5: Solve for x
    x = 509,019,795.21/19,655.97
  6. Step 6: Final answer
    x = 25,896.45

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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.