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Finding the Fourth Proportional to 6,208.62, 8,580.18 and 5,087.79

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Solution

The fourth proportional to 6,208.62, 8,580.18 and 5,087.79 is: 7,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,208.62 : 8,580.18 = 5,087.79 : x
  2. Step 2: Convert to fraction form
    6,208.62/8,580.18 = 5,087.79/x
  3. Step 3: Cross multiply
    6,208.62x = 8,580.18 × 5,087.79
  4. Step 4: Simplify right side
    6,208.62x = 43,654,154.00
  5. Step 5: Solve for x
    x = 43,654,154.00/6,208.62
  6. Step 6: Final answer
    x = 7,031.22

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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.