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Finding the Fourth Proportional to 8,603.06, 12,904.52 and 5,680.67

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Solution

The fourth proportional to 8,603.06, 12,904.52 and 5,680.67 is: 8,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.06 : 12,904.52 = 5,680.67 : x
  2. Step 2: Convert to fraction form
    8,603.06/12,904.52 = 5,680.67/x
  3. Step 3: Cross multiply
    8,603.06x = 12,904.52 × 5,680.67
  4. Step 4: Simplify right side
    8,603.06x = 73,306,226.70
  5. Step 5: Solve for x
    x = 73,306,226.70/8,603.06
  6. Step 6: Final answer
    x = 8,520.95

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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.