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Finding the Fourth Proportional to 33,578.55, 46,334.75 and 19,428.75

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Solution

The fourth proportional to 33,578.55, 46,334.75 and 19,428.75 is: 26,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,578.55 : 46,334.75 = 19,428.75 : x
  2. Step 2: Convert to fraction form
    33,578.55/46,334.75 = 19,428.75/x
  3. Step 3: Cross multiply
    33,578.55x = 46,334.75 × 19,428.75
  4. Step 4: Simplify right side
    33,578.55x = 900,226,176.92
  5. Step 5: Solve for x
    x = 900,226,176.92/33,578.55
  6. Step 6: Final answer
    x = 26,809.56

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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.