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Finding the Fourth Proportional to 8,922.69, 13,384.25 and 2,999.66

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Solution

The fourth proportional to 8,922.69, 13,384.25 and 2,999.66 is: 4,499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.69 : 13,384.25 = 2,999.66 : x
  2. Step 2: Convert to fraction form
    8,922.69/13,384.25 = 2,999.66/x
  3. Step 3: Cross multiply
    8,922.69x = 13,384.25 × 2,999.66
  4. Step 4: Simplify right side
    8,922.69x = 40,148,240.31
  5. Step 5: Solve for x
    x = 40,148,240.31/8,922.69
  6. Step 6: Final answer
    x = 4,499.57

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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.