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Finding the Fourth Proportional to 69,612.66, 96,064.91 and 37,781.58

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Solution

The fourth proportional to 69,612.66, 96,064.91 and 37,781.58 is: 52,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,612.66 : 96,064.91 = 37,781.58 : x
  2. Step 2: Convert to fraction form
    69,612.66/96,064.91 = 37,781.58/x
  3. Step 3: Cross multiply
    69,612.66x = 96,064.91 × 37,781.58
  4. Step 4: Simplify right side
    69,612.66x = 3,629,483,893.45
  5. Step 5: Solve for x
    x = 3,629,483,893.45/69,612.66
  6. Step 6: Final answer
    x = 52,138.27

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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.