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Finding the Fourth Proportional to 19,392.22, 29,061.42 and 8,836.44

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Solution

The fourth proportional to 19,392.22, 29,061.42 and 8,836.44 is: 13,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.22 : 29,061.42 = 8,836.44 : x
  2. Step 2: Convert to fraction form
    19,392.22/29,061.42 = 8,836.44/x
  3. Step 3: Cross multiply
    19,392.22x = 29,061.42 × 8,836.44
  4. Step 4: Simplify right side
    19,392.22x = 256,799,494.14
  5. Step 5: Solve for x
    x = 256,799,494.14/19,392.22
  6. Step 6: Final answer
    x = 13,242.40

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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.