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Finding the Fourth Proportional to 19,611.29, 29,416.93 and 7,932.71

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Solution

The fourth proportional to 19,611.29, 29,416.93 and 7,932.71 is: 11,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.29 : 29,416.93 = 7,932.71 : x
  2. Step 2: Convert to fraction form
    19,611.29/29,416.93 = 7,932.71/x
  3. Step 3: Cross multiply
    19,611.29x = 29,416.93 × 7,932.71
  4. Step 4: Simplify right side
    19,611.29x = 233,356,028.49
  5. Step 5: Solve for x
    x = 233,356,028.49/19,611.29
  6. Step 6: Final answer
    x = 11,899.06

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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.