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Finding the Fourth Proportional to 50,053.31, 75,079.08 and 12,612.54

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Solution

The fourth proportional to 50,053.31, 75,079.08 and 12,612.54 is: 18,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,053.31 : 75,079.08 = 12,612.54 : x
  2. Step 2: Convert to fraction form
    50,053.31/75,079.08 = 12,612.54/x
  3. Step 3: Cross multiply
    50,053.31x = 75,079.08 × 12,612.54
  4. Step 4: Simplify right side
    50,053.31x = 946,938,181.21
  5. Step 5: Solve for x
    x = 946,938,181.21/50,053.31
  6. Step 6: Final answer
    x = 18,918.59

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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.