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Finding the Fourth Proportional to 5,336.66, 7,364.22 and 2,978.66

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Solution

The fourth proportional to 5,336.66, 7,364.22 and 2,978.66 is: 4,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,336.66 : 7,364.22 = 2,978.66 : x
  2. Step 2: Convert to fraction form
    5,336.66/7,364.22 = 2,978.66/x
  3. Step 3: Cross multiply
    5,336.66x = 7,364.22 × 2,978.66
  4. Step 4: Simplify right side
    5,336.66x = 21,935,507.55
  5. Step 5: Solve for x
    x = 21,935,507.55/5,336.66
  6. Step 6: Final answer
    x = 4,110.34

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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.