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Finding the Fourth Proportional to 11,888.76, 17,834.96 and 4,095.80

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Solution

The fourth proportional to 11,888.76, 17,834.96 and 4,095.80 is: 6,144.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.76 : 17,834.96 = 4,095.80 : x
  2. Step 2: Convert to fraction form
    11,888.76/17,834.96 = 4,095.80/x
  3. Step 3: Cross multiply
    11,888.76x = 17,834.96 × 4,095.80
  4. Step 4: Simplify right side
    11,888.76x = 73,048,429.17
  5. Step 5: Solve for x
    x = 73,048,429.17/11,888.76
  6. Step 6: Final answer
    x = 6,144.33

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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.