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Finding the Fourth Proportional to 61,221.87, 84,480.34 and 34,358.22

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Solution

The fourth proportional to 61,221.87, 84,480.34 and 34,358.22 is: 47,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.87 : 84,480.34 = 34,358.22 : x
  2. Step 2: Convert to fraction form
    61,221.87/84,480.34 = 34,358.22/x
  3. Step 3: Cross multiply
    61,221.87x = 84,480.34 × 34,358.22
  4. Step 4: Simplify right side
    61,221.87x = 2,902,594,107.39
  5. Step 5: Solve for x
    x = 2,902,594,107.39/61,221.87
  6. Step 6: Final answer
    x = 47,411.07

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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.