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Finding the Fourth Proportional to 12,466.80, 18,701.16 and 3,701.69

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Solution

The fourth proportional to 12,466.80, 18,701.16 and 3,701.69 is: 5,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.80 : 18,701.16 = 3,701.69 : x
  2. Step 2: Convert to fraction form
    12,466.80/18,701.16 = 3,701.69/x
  3. Step 3: Cross multiply
    12,466.80x = 18,701.16 × 3,701.69
  4. Step 4: Simplify right side
    12,466.80x = 69,225,896.96
  5. Step 5: Solve for x
    x = 69,225,896.96/12,466.80
  6. Step 6: Final answer
    x = 5,552.82

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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.