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Finding the Fourth Proportional to 69,690.61, 96,172.52 and 37,859.74

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Solution

The fourth proportional to 69,690.61, 96,172.52 and 37,859.74 is: 52,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,690.61 : 96,172.52 = 37,859.74 : x
  2. Step 2: Convert to fraction form
    69,690.61/96,172.52 = 37,859.74/x
  3. Step 3: Cross multiply
    69,690.61x = 96,172.52 × 37,859.74
  4. Step 4: Simplify right side
    69,690.61x = 3,641,066,172.61
  5. Step 5: Solve for x
    x = 3,641,066,172.61/69,690.61
  6. Step 6: Final answer
    x = 52,246.15

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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.