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Finding the Fourth Proportional to 18,341.28, 27,506.16 and 7,811.19

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Solution

The fourth proportional to 18,341.28, 27,506.16 and 7,811.19 is: 11,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.28 : 27,506.16 = 7,811.19 : x
  2. Step 2: Convert to fraction form
    18,341.28/27,506.16 = 7,811.19/x
  3. Step 3: Cross multiply
    18,341.28x = 27,506.16 × 7,811.19
  4. Step 4: Simplify right side
    18,341.28x = 214,855,841.93
  5. Step 5: Solve for x
    x = 214,855,841.93/18,341.28
  6. Step 6: Final answer
    x = 11,714.33

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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.