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Finding the Fourth Proportional to 49,645.82, 74,480.88 and 27,145.64

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Solution

The fourth proportional to 49,645.82, 74,480.88 and 27,145.64 is: 40,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,645.82 : 74,480.88 = 27,145.64 : x
  2. Step 2: Convert to fraction form
    49,645.82/74,480.88 = 27,145.64/x
  3. Step 3: Cross multiply
    49,645.82x = 74,480.88 × 27,145.64
  4. Step 4: Simplify right side
    49,645.82x = 2,021,831,155.36
  5. Step 5: Solve for x
    x = 2,021,831,155.36/49,645.82
  6. Step 6: Final answer
    x = 40,725.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.