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Finding the Fourth Proportional to 7,892.85, 10,892.37 and 4,308.04

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Solution

The fourth proportional to 7,892.85, 10,892.37 and 4,308.04 is: 5,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.85 : 10,892.37 = 4,308.04 : x
  2. Step 2: Convert to fraction form
    7,892.85/10,892.37 = 4,308.04/x
  3. Step 3: Cross multiply
    7,892.85x = 10,892.37 × 4,308.04
  4. Step 4: Simplify right side
    7,892.85x = 46,924,765.65
  5. Step 5: Solve for x
    x = 46,924,765.65/7,892.85
  6. Step 6: Final answer
    x = 5,945.22

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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.