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Finding the Fourth Proportional to 6,591.31, 9,890.62 and 2,698.45

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Solution

The fourth proportional to 6,591.31, 9,890.62 and 2,698.45 is: 4,049.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,591.31 : 9,890.62 = 2,698.45 : x
  2. Step 2: Convert to fraction form
    6,591.31/9,890.62 = 2,698.45/x
  3. Step 3: Cross multiply
    6,591.31x = 9,890.62 × 2,698.45
  4. Step 4: Simplify right side
    6,591.31x = 26,689,312.07
  5. Step 5: Solve for x
    x = 26,689,312.07/6,591.31
  6. Step 6: Final answer
    x = 4,049.17

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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.