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Finding the Fourth Proportional to 5,114.79, 7,668.90 and 3,357.72

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Solution

The fourth proportional to 5,114.79, 7,668.90 and 3,357.72 is: 5,034.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.79 : 7,668.90 = 3,357.72 : x
  2. Step 2: Convert to fraction form
    5,114.79/7,668.90 = 3,357.72/x
  3. Step 3: Cross multiply
    5,114.79x = 7,668.90 × 3,357.72
  4. Step 4: Simplify right side
    5,114.79x = 25,750,018.91
  5. Step 5: Solve for x
    x = 25,750,018.91/5,114.79
  6. Step 6: Final answer
    x = 5,034.42

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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.