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Finding the Fourth Proportional to 61,212.92, 91,820.39 and 19,094.13

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Solution

The fourth proportional to 61,212.92, 91,820.39 and 19,094.13 is: 28,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.92 : 91,820.39 = 19,094.13 : x
  2. Step 2: Convert to fraction form
    61,212.92/91,820.39 = 19,094.13/x
  3. Step 3: Cross multiply
    61,212.92x = 91,820.39 × 19,094.13
  4. Step 4: Simplify right side
    61,212.92x = 1,753,230,367.84
  5. Step 5: Solve for x
    x = 1,753,230,367.84/61,212.92
  6. Step 6: Final answer
    x = 28,641.51

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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.