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Finding the Fourth Proportional to 11,874.58, 17,806.85 and 3,555.77

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Solution

The fourth proportional to 11,874.58, 17,806.85 and 3,555.77 is: 5,332.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.58 : 17,806.85 = 3,555.77 : x
  2. Step 2: Convert to fraction form
    11,874.58/17,806.85 = 3,555.77/x
  3. Step 3: Cross multiply
    11,874.58x = 17,806.85 × 3,555.77
  4. Step 4: Simplify right side
    11,874.58x = 63,317,089.76
  5. Step 5: Solve for x
    x = 63,317,089.76/11,874.58
  6. Step 6: Final answer
    x = 5,332.16

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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.