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Finding the Fourth Proportional to 11,841.57, 16,337.57 and 7,863.48

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Solution

The fourth proportional to 11,841.57, 16,337.57 and 7,863.48 is: 10,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.57 : 16,337.57 = 7,863.48 : x
  2. Step 2: Convert to fraction form
    11,841.57/16,337.57 = 7,863.48/x
  3. Step 3: Cross multiply
    11,841.57x = 16,337.57 × 7,863.48
  4. Step 4: Simplify right side
    11,841.57x = 128,470,115.63
  5. Step 5: Solve for x
    x = 128,470,115.63/11,841.57
  6. Step 6: Final answer
    x = 10,849.08

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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.