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Finding the Fourth Proportional to 13,466.76, 18,584.76 and 7,801.76

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Solution

The fourth proportional to 13,466.76, 18,584.76 and 7,801.76 is: 10,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.76 : 18,584.76 = 7,801.76 : x
  2. Step 2: Convert to fraction form
    13,466.76/18,584.76 = 7,801.76/x
  3. Step 3: Cross multiply
    13,466.76x = 18,584.76 × 7,801.76
  4. Step 4: Simplify right side
    13,466.76x = 144,993,837.18
  5. Step 5: Solve for x
    x = 144,993,837.18/13,466.76
  6. Step 6: Final answer
    x = 10,766.79

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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.