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Finding the Fourth Proportional to 12,602.26, 18,915.06 and 6,366.66

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Solution

The fourth proportional to 12,602.26, 18,915.06 and 6,366.66 is: 9,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.26 : 18,915.06 = 6,366.66 : x
  2. Step 2: Convert to fraction form
    12,602.26/18,915.06 = 6,366.66/x
  3. Step 3: Cross multiply
    12,602.26x = 18,915.06 × 6,366.66
  4. Step 4: Simplify right side
    12,602.26x = 120,425,739.98
  5. Step 5: Solve for x
    x = 120,425,739.98/12,602.26
  6. Step 6: Final answer
    x = 9,555.89

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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.