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Finding the Fourth Proportional to 12,792.84, 17,618.82 and 11,023.80

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Solution

The fourth proportional to 12,792.84, 17,618.82 and 11,023.80 is: 15,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.84 : 17,618.82 = 11,023.80 : x
  2. Step 2: Convert to fraction form
    12,792.84/17,618.82 = 11,023.80/x
  3. Step 3: Cross multiply
    12,792.84x = 17,618.82 × 11,023.80
  4. Step 4: Simplify right side
    12,792.84x = 194,226,347.92
  5. Step 5: Solve for x
    x = 194,226,347.92/12,792.84
  6. Step 6: Final answer
    x = 15,182.43

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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.