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Finding the Fourth Proportional to 8,636.59, 12,955.74 and 3,441.25

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Solution

The fourth proportional to 8,636.59, 12,955.74 and 3,441.25 is: 5,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.59 : 12,955.74 = 3,441.25 : x
  2. Step 2: Convert to fraction form
    8,636.59/12,955.74 = 3,441.25/x
  3. Step 3: Cross multiply
    8,636.59x = 12,955.74 × 3,441.25
  4. Step 4: Simplify right side
    8,636.59x = 44,583,940.28
  5. Step 5: Solve for x
    x = 44,583,940.28/8,636.59
  6. Step 6: Final answer
    x = 5,162.22

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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.