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Finding the Fourth Proportional to 33,432, 46,137.60 and 18,528

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Solution

The fourth proportional to 33,432, 46,137.60 and 18,528 is: 25,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,432 : 46,137.60 = 18,528 : x
  2. Step 2: Convert to fraction form
    33,432/46,137.60 = 18,528/x
  3. Step 3: Cross multiply
    33,432x = 46,137.60 × 18,528
  4. Step 4: Simplify right side
    33,432x = 854,837,452.80
  5. Step 5: Solve for x
    x = 854,837,452.80/33,432
  6. Step 6: Final answer
    x = 25,569.44

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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.