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Finding the Fourth Proportional to 60,638.80, 83,684.08 and 33,781.32

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Solution

The fourth proportional to 60,638.80, 83,684.08 and 33,781.32 is: 46,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,638.80 : 83,684.08 = 33,781.32 : x
  2. Step 2: Convert to fraction form
    60,638.80/83,684.08 = 33,781.32/x
  3. Step 3: Cross multiply
    60,638.80x = 83,684.08 × 33,781.32
  4. Step 4: Simplify right side
    60,638.80x = 2,826,958,685.39
  5. Step 5: Solve for x
    x = 2,826,958,685.39/60,638.80
  6. Step 6: Final answer
    x = 46,619.63

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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.