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Finding the Fourth Proportional to 8,636.54, 12,951.50 and 3,088.85

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Solution

The fourth proportional to 8,636.54, 12,951.50 and 3,088.85 is: 4,632.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.54 : 12,951.50 = 3,088.85 : x
  2. Step 2: Convert to fraction form
    8,636.54/12,951.50 = 3,088.85/x
  3. Step 3: Cross multiply
    8,636.54x = 12,951.50 × 3,088.85
  4. Step 4: Simplify right side
    8,636.54x = 40,005,160.57
  5. Step 5: Solve for x
    x = 40,005,160.57/8,636.54
  6. Step 6: Final answer
    x = 4,632.08

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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.