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Finding the Fourth Proportional to 73,175.65, 109,750.71 and 20,572.63

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Solution

The fourth proportional to 73,175.65, 109,750.71 and 20,572.63 is: 30,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,175.65 : 109,750.71 = 20,572.63 : x
  2. Step 2: Convert to fraction form
    73,175.65/109,750.71 = 20,572.63/x
  3. Step 3: Cross multiply
    73,175.65x = 109,750.71 × 20,572.63
  4. Step 4: Simplify right side
    73,175.65x = 2,257,860,749.07
  5. Step 5: Solve for x
    x = 2,257,860,749.07/73,175.65
  6. Step 6: Final answer
    x = 30,855.36

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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.