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Finding the Fourth Proportional to 54,646.70, 81,981.59 and 17,217.41

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Solution

The fourth proportional to 54,646.70, 81,981.59 and 17,217.41 is: 25,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,646.70 : 81,981.59 = 17,217.41 : x
  2. Step 2: Convert to fraction form
    54,646.70/81,981.59 = 17,217.41/x
  3. Step 3: Cross multiply
    54,646.70x = 81,981.59 × 17,217.41
  4. Step 4: Simplify right side
    54,646.70x = 1,411,510,151.49
  5. Step 5: Solve for x
    x = 1,411,510,151.49/54,646.70
  6. Step 6: Final answer
    x = 25,829.74

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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.