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Finding the Fourth Proportional to 39,330.80, 54,277.82 and 22,335.80

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Solution

The fourth proportional to 39,330.80, 54,277.82 and 22,335.80 is: 30,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.80 : 54,277.82 = 22,335.80 : x
  2. Step 2: Convert to fraction form
    39,330.80/54,277.82 = 22,335.80/x
  3. Step 3: Cross multiply
    39,330.80x = 54,277.82 × 22,335.80
  4. Step 4: Simplify right side
    39,330.80x = 1,212,338,531.96
  5. Step 5: Solve for x
    x = 1,212,338,531.96/39,330.80
  6. Step 6: Final answer
    x = 30,824.15

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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.