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Finding the Fourth Proportional to 17,737.72, 26,612.88 and 7,876.12

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Solution

The fourth proportional to 17,737.72, 26,612.88 and 7,876.12 is: 11,816.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,737.72 : 26,612.88 = 7,876.12 : x
  2. Step 2: Convert to fraction form
    17,737.72/26,612.88 = 7,876.12/x
  3. Step 3: Cross multiply
    17,737.72x = 26,612.88 × 7,876.12
  4. Step 4: Simplify right side
    17,737.72x = 209,606,236.43
  5. Step 5: Solve for x
    x = 209,606,236.43/17,737.72
  6. Step 6: Final answer
    x = 11,816.98

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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.