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Finding the Fourth Proportional to 73,017.84, 100,764.63 and 39,483.84

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Solution

The fourth proportional to 73,017.84, 100,764.63 and 39,483.84 is: 54,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.84 : 100,764.63 = 39,483.84 : x
  2. Step 2: Convert to fraction form
    73,017.84/100,764.63 = 39,483.84/x
  3. Step 3: Cross multiply
    73,017.84x = 100,764.63 × 39,483.84
  4. Step 4: Simplify right side
    73,017.84x = 3,978,574,906.45
  5. Step 5: Solve for x
    x = 3,978,574,906.45/73,017.84
  6. Step 6: Final answer
    x = 54,487.71

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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.