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Finding the Fourth Proportional to 7,867.62, 11,800.59 and 4,937.22

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Solution

The fourth proportional to 7,867.62, 11,800.59 and 4,937.22 is: 7,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.62 : 11,800.59 = 4,937.22 : x
  2. Step 2: Convert to fraction form
    7,867.62/11,800.59 = 4,937.22/x
  3. Step 3: Cross multiply
    7,867.62x = 11,800.59 × 4,937.22
  4. Step 4: Simplify right side
    7,867.62x = 58,262,108.96
  5. Step 5: Solve for x
    x = 58,262,108.96/7,867.62
  6. Step 6: Final answer
    x = 7,405.30

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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.