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Finding the Fourth Proportional to 6,668.55, 9,193.09 and 5,173.83

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Solution

The fourth proportional to 6,668.55, 9,193.09 and 5,173.83 is: 7,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.55 : 9,193.09 = 5,173.83 : x
  2. Step 2: Convert to fraction form
    6,668.55/9,193.09 = 5,173.83/x
  3. Step 3: Cross multiply
    6,668.55x = 9,193.09 × 5,173.83
  4. Step 4: Simplify right side
    6,668.55x = 47,563,484.83
  5. Step 5: Solve for x
    x = 47,563,484.83/6,668.55
  6. Step 6: Final answer
    x = 7,132.51

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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.