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Finding the Fourth Proportional to 69,161.50, 95,328.15 and 48,992.50

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Solution

The fourth proportional to 69,161.50, 95,328.15 and 48,992.50 is: 67,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,161.50 : 95,328.15 = 48,992.50 : x
  2. Step 2: Convert to fraction form
    69,161.50/95,328.15 = 48,992.50/x
  3. Step 3: Cross multiply
    69,161.50x = 95,328.15 × 48,992.50
  4. Step 4: Simplify right side
    69,161.50x = 4,670,364,143.91
  5. Step 5: Solve for x
    x = 4,670,364,143.91/69,161.50
  6. Step 6: Final answer
    x = 67,528.38

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1.5x scale

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.