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Finding the Fourth Proportional to 45,665.76, 62,777.04 and 39,268.80

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Solution

The fourth proportional to 45,665.76, 62,777.04 and 39,268.80 is: 53,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.76 : 62,777.04 = 39,268.80 : x
  2. Step 2: Convert to fraction form
    45,665.76/62,777.04 = 39,268.80/x
  3. Step 3: Cross multiply
    45,665.76x = 62,777.04 × 39,268.80
  4. Step 4: Simplify right side
    45,665.76x = 2,465,179,028.35
  5. Step 5: Solve for x
    x = 2,465,179,028.35/45,665.76
  6. Step 6: Final answer
    x = 53,983.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.