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Finding the Fourth Proportional to 75,510, 104,203.80 and 41,982.48

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Solution

The fourth proportional to 75,510, 104,203.80 and 41,982.48 is: 57,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,510 : 104,203.80 = 41,982.48 : x
  2. Step 2: Convert to fraction form
    75,510/104,203.80 = 41,982.48/x
  3. Step 3: Cross multiply
    75,510x = 104,203.80 × 41,982.48
  4. Step 4: Simplify right side
    75,510x = 4,374,733,949.42
  5. Step 5: Solve for x
    x = 4,374,733,949.42/75,510
  6. Step 6: Final answer
    x = 57,935.82

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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.