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Finding the Fourth Proportional to 5,035.85, 6,978.92 and 4,965.38

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Solution

The fourth proportional to 5,035.85, 6,978.92 and 4,965.38 is: 6,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,035.85 : 6,978.92 = 4,965.38 : x
  2. Step 2: Convert to fraction form
    5,035.85/6,978.92 = 4,965.38/x
  3. Step 3: Cross multiply
    5,035.85x = 6,978.92 × 4,965.38
  4. Step 4: Simplify right side
    5,035.85x = 34,652,989.79
  5. Step 5: Solve for x
    x = 34,652,989.79/5,035.85
  6. Step 6: Final answer
    x = 6,881.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.