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Finding the Fourth Proportional to 50,510.72, 75,768.32 and 19,343.68

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Solution

The fourth proportional to 50,510.72, 75,768.32 and 19,343.68 is: 29,016.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,510.72 : 75,768.32 = 19,343.68 : x
  2. Step 2: Convert to fraction form
    50,510.72/75,768.32 = 19,343.68/x
  3. Step 3: Cross multiply
    50,510.72x = 75,768.32 × 19,343.68
  4. Step 4: Simplify right side
    50,510.72x = 1,465,638,136.22
  5. Step 5: Solve for x
    x = 1,465,638,136.22/50,510.72
  6. Step 6: Final answer
    x = 29,016.38

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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.