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Finding the Fourth Proportional to 8,353.62, 12,530.61 and 3,085.92

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Solution

The fourth proportional to 8,353.62, 12,530.61 and 3,085.92 is: 4,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.62 : 12,530.61 = 3,085.92 : x
  2. Step 2: Convert to fraction form
    8,353.62/12,530.61 = 3,085.92/x
  3. Step 3: Cross multiply
    8,353.62x = 12,530.61 × 3,085.92
  4. Step 4: Simplify right side
    8,353.62x = 38,668,486.57
  5. Step 5: Solve for x
    x = 38,668,486.57/8,353.62
  6. Step 6: Final answer
    x = 4,628.95

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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.