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Finding the Fourth Proportional to 6,779.16, 9,358.74 and 4,791.42

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Solution

The fourth proportional to 6,779.16, 9,358.74 and 4,791.42 is: 6,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.16 : 9,358.74 = 4,791.42 : x
  2. Step 2: Convert to fraction form
    6,779.16/9,358.74 = 4,791.42/x
  3. Step 3: Cross multiply
    6,779.16x = 9,358.74 × 4,791.42
  4. Step 4: Simplify right side
    6,779.16x = 44,841,654.01
  5. Step 5: Solve for x
    x = 44,841,654.01/6,779.16
  6. Step 6: Final answer
    x = 6,614.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.