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Finding the Fourth Proportional to 60,705.03, 83,786.36 and 39,447.39

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Solution

The fourth proportional to 60,705.03, 83,786.36 and 39,447.39 is: 54,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,705.03 : 83,786.36 = 39,447.39 : x
  2. Step 2: Convert to fraction form
    60,705.03/83,786.36 = 39,447.39/x
  3. Step 3: Cross multiply
    60,705.03x = 83,786.36 × 39,447.39
  4. Step 4: Simplify right side
    60,705.03x = 3,305,153,022.36
  5. Step 5: Solve for x
    x = 3,305,153,022.36/60,705.03
  6. Step 6: Final answer
    x = 54,446.11

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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.