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Finding the Fourth Proportional to 50,543.69, 75,815.52 and 15,478.79

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Solution

The fourth proportional to 50,543.69, 75,815.52 and 15,478.79 is: 23,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,543.69 : 75,815.52 = 15,478.79 : x
  2. Step 2: Convert to fraction form
    50,543.69/75,815.52 = 15,478.79/x
  3. Step 3: Cross multiply
    50,543.69x = 75,815.52 × 15,478.79
  4. Step 4: Simplify right side
    50,543.69x = 1,173,532,133.74
  5. Step 5: Solve for x
    x = 1,173,532,133.74/50,543.69
  6. Step 6: Final answer
    x = 23,218.18

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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.