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Finding the Fourth Proportional to 45,115.51, 62,218.04 and 38,739.93

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Solution

The fourth proportional to 45,115.51, 62,218.04 and 38,739.93 is: 53,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,115.51 : 62,218.04 = 38,739.93 : x
  2. Step 2: Convert to fraction form
    45,115.51/62,218.04 = 38,739.93/x
  3. Step 3: Cross multiply
    45,115.51x = 62,218.04 × 38,739.93
  4. Step 4: Simplify right side
    45,115.51x = 2,410,322,320.64
  5. Step 5: Solve for x
    x = 2,410,322,320.64/45,115.51
  6. Step 6: Final answer
    x = 53,425.58

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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.