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Finding the Fourth Proportional to 50,079.68, 75,114.63 and 13,143.68

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Solution

The fourth proportional to 50,079.68, 75,114.63 and 13,143.68 is: 19,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,079.68 : 75,114.63 = 13,143.68 : x
  2. Step 2: Convert to fraction form
    50,079.68/75,114.63 = 13,143.68/x
  3. Step 3: Cross multiply
    50,079.68x = 75,114.63 × 13,143.68
  4. Step 4: Simplify right side
    50,079.68x = 987,282,660.04
  5. Step 5: Solve for x
    x = 987,282,660.04/50,079.68
  6. Step 6: Final answer
    x = 19,714.24

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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.