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Finding the Fourth Proportional to 29,676.90, 40,981.88 and 19,084.92

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Solution

The fourth proportional to 29,676.90, 40,981.88 and 19,084.92 is: 26,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,676.90 : 40,981.88 = 19,084.92 : x
  2. Step 2: Convert to fraction form
    29,676.90/40,981.88 = 19,084.92/x
  3. Step 3: Cross multiply
    29,676.90x = 40,981.88 × 19,084.92
  4. Step 4: Simplify right side
    29,676.90x = 782,135,805.83
  5. Step 5: Solve for x
    x = 782,135,805.83/29,676.90
  6. Step 6: Final answer
    x = 26,355.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.