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Finding the Fourth Proportional to 6,693.90, 10,040.85 and 4,857.90

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Solution

The fourth proportional to 6,693.90, 10,040.85 and 4,857.90 is: 7,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.90 : 10,040.85 = 4,857.90 : x
  2. Step 2: Convert to fraction form
    6,693.90/10,040.85 = 4,857.90/x
  3. Step 3: Cross multiply
    6,693.90x = 10,040.85 × 4,857.90
  4. Step 4: Simplify right side
    6,693.90x = 48,777,445.22
  5. Step 5: Solve for x
    x = 48,777,445.22/6,693.90
  6. Step 6: Final answer
    x = 7,286.85

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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.