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Finding the Fourth Proportional to 19,492.71, 26,902.97 and 12,797.76

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Solution

The fourth proportional to 19,492.71, 26,902.97 and 12,797.76 is: 17,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492.71 : 26,902.97 = 12,797.76 : x
  2. Step 2: Convert to fraction form
    19,492.71/26,902.97 = 12,797.76/x
  3. Step 3: Cross multiply
    19,492.71x = 26,902.97 × 12,797.76
  4. Step 4: Simplify right side
    19,492.71x = 344,297,753.35
  5. Step 5: Solve for x
    x = 344,297,753.35/19,492.71
  6. Step 6: Final answer
    x = 17,662.90

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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.