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Finding the Fourth Proportional to 8,993.85, 12,411.54 and 4,960.58

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Solution

The fourth proportional to 8,993.85, 12,411.54 and 4,960.58 is: 6,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.85 : 12,411.54 = 4,960.58 : x
  2. Step 2: Convert to fraction form
    8,993.85/12,411.54 = 4,960.58/x
  3. Step 3: Cross multiply
    8,993.85x = 12,411.54 × 4,960.58
  4. Step 4: Simplify right side
    8,993.85x = 61,568,437.09
  5. Step 5: Solve for x
    x = 61,568,437.09/8,993.85
  6. Step 6: Final answer
    x = 6,845.62

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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.