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Finding the Fourth Proportional to 18,377.84, 25,363.84 and 17,877.47

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Solution

The fourth proportional to 18,377.84, 25,363.84 and 17,877.47 is: 24,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.84 : 25,363.84 = 17,877.47 : x
  2. Step 2: Convert to fraction form
    18,377.84/25,363.84 = 17,877.47/x
  3. Step 3: Cross multiply
    18,377.84x = 25,363.84 × 17,877.47
  4. Step 4: Simplify right side
    18,377.84x = 453,441,161.87
  5. Step 5: Solve for x
    x = 453,441,161.87/18,377.84
  6. Step 6: Final answer
    x = 24,673.26

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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.