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Finding the Fourth Proportional to 11,808.78, 17,714.10 and 3,043.68

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Solution

The fourth proportional to 11,808.78, 17,714.10 and 3,043.68 is: 4,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.78 : 17,714.10 = 3,043.68 : x
  2. Step 2: Convert to fraction form
    11,808.78/17,714.10 = 3,043.68/x
  3. Step 3: Cross multiply
    11,808.78x = 17,714.10 × 3,043.68
  4. Step 4: Simplify right side
    11,808.78x = 53,916,051.89
  5. Step 5: Solve for x
    x = 53,916,051.89/11,808.78
  6. Step 6: Final answer
    x = 4,565.76

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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.