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Finding the Fourth Proportional to 61,975.86, 85,527.30 and 36,820.50

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Solution

The fourth proportional to 61,975.86, 85,527.30 and 36,820.50 is: 50,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,975.86 : 85,527.30 = 36,820.50 : x
  2. Step 2: Convert to fraction form
    61,975.86/85,527.30 = 36,820.50/x
  3. Step 3: Cross multiply
    61,975.86x = 85,527.30 × 36,820.50
  4. Step 4: Simplify right side
    61,975.86x = 3,149,157,949.65
  5. Step 5: Solve for x
    x = 3,149,157,949.65/61,975.86
  6. Step 6: Final answer
    x = 50,812.65

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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.