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Finding the Fourth Proportional to 17,779.14, 26,648.16 and 6,678.74

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Solution

The fourth proportional to 17,779.14, 26,648.16 and 6,678.74 is: 10,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.14 : 26,648.16 = 6,678.74 : x
  2. Step 2: Convert to fraction form
    17,779.14/26,648.16 = 6,678.74/x
  3. Step 3: Cross multiply
    17,779.14x = 26,648.16 × 6,678.74
  4. Step 4: Simplify right side
    17,779.14x = 177,975,998.88
  5. Step 5: Solve for x
    x = 177,975,998.88/17,779.14
  6. Step 6: Final answer
    x = 10,010.38

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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.