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Finding the Fourth Proportional to 69,814.44, 96,345.90 and 37,985.40

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Solution

The fourth proportional to 69,814.44, 96,345.90 and 37,985.40 is: 52,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.44 : 96,345.90 = 37,985.40 : x
  2. Step 2: Convert to fraction form
    69,814.44/96,345.90 = 37,985.40/x
  3. Step 3: Cross multiply
    69,814.44x = 96,345.90 × 37,985.40
  4. Step 4: Simplify right side
    69,814.44x = 3,659,737,549.86
  5. Step 5: Solve for x
    x = 3,659,737,549.86/69,814.44
  6. Step 6: Final answer
    x = 52,420.93

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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.