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Finding the Fourth Proportional to 73,173.07, 109,775.10 and 25,786.25

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Solution

The fourth proportional to 73,173.07, 109,775.10 and 25,786.25 is: 38,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,173.07 : 109,775.10 = 25,786.25 : x
  2. Step 2: Convert to fraction form
    73,173.07/109,775.10 = 25,786.25/x
  3. Step 3: Cross multiply
    73,173.07x = 109,775.10 × 25,786.25
  4. Step 4: Simplify right side
    73,173.07x = 2,830,687,986.81
  5. Step 5: Solve for x
    x = 2,830,687,986.81/73,173.07
  6. Step 6: Final answer
    x = 38,684.83

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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.