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Finding the Fourth Proportional to 19,468.84, 29,204.22 and 5,428.84

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Solution

The fourth proportional to 19,468.84, 29,204.22 and 5,428.84 is: 8,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468.84 : 29,204.22 = 5,428.84 : x
  2. Step 2: Convert to fraction form
    19,468.84/29,204.22 = 5,428.84/x
  3. Step 3: Cross multiply
    19,468.84x = 29,204.22 × 5,428.84
  4. Step 4: Simplify right side
    19,468.84x = 158,545,037.70
  5. Step 5: Solve for x
    x = 158,545,037.70/19,468.84
  6. Step 6: Final answer
    x = 8,143.53

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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.