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Finding the Fourth Proportional to 66,913.74, 100,349.47 and 22,530.12

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Solution

The fourth proportional to 66,913.74, 100,349.47 and 22,530.12 is: 33,788.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.74 : 100,349.47 = 22,530.12 : x
  2. Step 2: Convert to fraction form
    66,913.74/100,349.47 = 22,530.12/x
  3. Step 3: Cross multiply
    66,913.74x = 100,349.47 × 22,530.12
  4. Step 4: Simplify right side
    66,913.74x = 2,260,885,115.37
  5. Step 5: Solve for x
    x = 2,260,885,115.37/66,913.74
  6. Step 6: Final answer
    x = 33,788.05

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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.