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Finding the Fourth Proportional to 22,295.79, 30,769.16 and 12,737.25

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Solution

The fourth proportional to 22,295.79, 30,769.16 and 12,737.25 is: 17,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.79 : 30,769.16 = 12,737.25 : x
  2. Step 2: Convert to fraction form
    22,295.79/30,769.16 = 12,737.25/x
  3. Step 3: Cross multiply
    22,295.79x = 30,769.16 × 12,737.25
  4. Step 4: Simplify right side
    22,295.79x = 391,914,419.52
  5. Step 5: Solve for x
    x = 391,914,419.52/22,295.79
  6. Step 6: Final answer
    x = 17,577.96

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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.