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Finding the Fourth Proportional to 13,465.77, 18,592.79 and 8,167.79

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Solution

The fourth proportional to 13,465.77, 18,592.79 and 8,167.79 is: 11,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.77 : 18,592.79 = 8,167.79 : x
  2. Step 2: Convert to fraction form
    13,465.77/18,592.79 = 8,167.79/x
  3. Step 3: Cross multiply
    13,465.77x = 18,592.79 × 8,167.79
  4. Step 4: Simplify right side
    13,465.77x = 151,861,870.43
  5. Step 5: Solve for x
    x = 151,861,870.43/13,465.77
  6. Step 6: Final answer
    x = 11,277.62

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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.