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Finding the Fourth Proportional to 5,777.30, 8,653.80 and 4,805.30

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Solution

The fourth proportional to 5,777.30, 8,653.80 and 4,805.30 is: 7,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.30 : 8,653.80 = 4,805.30 : x
  2. Step 2: Convert to fraction form
    5,777.30/8,653.80 = 4,805.30/x
  3. Step 3: Cross multiply
    5,777.30x = 8,653.80 × 4,805.30
  4. Step 4: Simplify right side
    5,777.30x = 41,584,105.14
  5. Step 5: Solve for x
    x = 41,584,105.14/5,777.30
  6. Step 6: Final answer
    x = 7,197.84

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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.