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Finding the Fourth Proportional to 33,275.76, 45,920.76 and 18,371.76

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Solution

The fourth proportional to 33,275.76, 45,920.76 and 18,371.76 is: 25,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,275.76 : 45,920.76 = 18,371.76 : x
  2. Step 2: Convert to fraction form
    33,275.76/45,920.76 = 18,371.76/x
  3. Step 3: Cross multiply
    33,275.76x = 45,920.76 × 18,371.76
  4. Step 4: Simplify right side
    33,275.76x = 843,645,181.74
  5. Step 5: Solve for x
    x = 843,645,181.74/33,275.76
  6. Step 6: Final answer
    x = 25,353.15

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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.