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Finding the Fourth Proportional to 9,065.87, 12,511.80 and 6,087.90

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Solution

The fourth proportional to 9,065.87, 12,511.80 and 6,087.90 is: 8,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.87 : 12,511.80 = 6,087.90 : x
  2. Step 2: Convert to fraction form
    9,065.87/12,511.80 = 6,087.90/x
  3. Step 3: Cross multiply
    9,065.87x = 12,511.80 × 6,087.90
  4. Step 4: Simplify right side
    9,065.87x = 76,170,603.28
  5. Step 5: Solve for x
    x = 76,170,603.28/9,065.87
  6. Step 6: Final answer
    x = 8,401.91

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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.