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Finding the Fourth Proportional to 33,351.68, 45,988.48 and 22,720

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Solution

The fourth proportional to 33,351.68, 45,988.48 and 22,720 is: 31,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,351.68 : 45,988.48 = 22,720 : x
  2. Step 2: Convert to fraction form
    33,351.68/45,988.48 = 22,720/x
  3. Step 3: Cross multiply
    33,351.68x = 45,988.48 × 22,720
  4. Step 4: Simplify right side
    33,351.68x = 1,044,858,265.60
  5. Step 5: Solve for x
    x = 1,044,858,265.60/33,351.68
  6. Step 6: Final answer
    x = 31,328.50

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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.