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Finding the Fourth Proportional to 49,507.97, 68,205.48 and 40,502.99

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Solution

The fourth proportional to 49,507.97, 68,205.48 and 40,502.99 is: 55,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,507.97 : 68,205.48 = 40,502.99 : x
  2. Step 2: Convert to fraction form
    49,507.97/68,205.48 = 40,502.99/x
  3. Step 3: Cross multiply
    49,507.97x = 68,205.48 × 40,502.99
  4. Step 4: Simplify right side
    49,507.97x = 2,762,525,533.36
  5. Step 5: Solve for x
    x = 2,762,525,533.36/49,507.97
  6. Step 6: Final answer
    x = 55,799.62

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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.