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Finding the Fourth Proportional to 61,698.36, 92,473.12 and 28,372.74

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Solution

The fourth proportional to 61,698.36, 92,473.12 and 28,372.74 is: 42,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,698.36 : 92,473.12 = 28,372.74 : x
  2. Step 2: Convert to fraction form
    61,698.36/92,473.12 = 28,372.74/x
  3. Step 3: Cross multiply
    61,698.36x = 92,473.12 × 28,372.74
  4. Step 4: Simplify right side
    61,698.36x = 2,623,715,790.75
  5. Step 5: Solve for x
    x = 2,623,715,790.75/61,698.36
  6. Step 6: Final answer
    x = 42,524.89

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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.