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Finding the Fourth Proportional to 18,792.27, 28,184.76 and 8,265.51

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Solution

The fourth proportional to 18,792.27, 28,184.76 and 8,265.51 is: 12,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.27 : 28,184.76 = 8,265.51 : x
  2. Step 2: Convert to fraction form
    18,792.27/28,184.76 = 8,265.51/x
  3. Step 3: Cross multiply
    18,792.27x = 28,184.76 × 8,265.51
  4. Step 4: Simplify right side
    18,792.27x = 232,961,415.63
  5. Step 5: Solve for x
    x = 232,961,415.63/18,792.27
  6. Step 6: Final answer
    x = 12,396.66

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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.