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Finding the Fourth Proportional to 19,792.67, 29,667.54 and 9,908.11

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Solution

The fourth proportional to 19,792.67, 29,667.54 and 9,908.11 is: 14,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.67 : 29,667.54 = 9,908.11 : x
  2. Step 2: Convert to fraction form
    19,792.67/29,667.54 = 9,908.11/x
  3. Step 3: Cross multiply
    19,792.67x = 29,667.54 × 9,908.11
  4. Step 4: Simplify right side
    19,792.67x = 293,949,101.41
  5. Step 5: Solve for x
    x = 293,949,101.41/19,792.67
  6. Step 6: Final answer
    x = 14,851.41

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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.