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Finding the Fourth Proportional to 66,783.61, 92,157.91 and 36,563.14

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Solution

The fourth proportional to 66,783.61, 92,157.91 and 36,563.14 is: 50,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,783.61 : 92,157.91 = 36,563.14 : x
  2. Step 2: Convert to fraction form
    66,783.61/92,157.91 = 36,563.14/x
  3. Step 3: Cross multiply
    66,783.61x = 92,157.91 × 36,563.14
  4. Step 4: Simplify right side
    66,783.61x = 3,369,582,565.44
  5. Step 5: Solve for x
    x = 3,369,582,565.44/66,783.61
  6. Step 6: Final answer
    x = 50,455.23

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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.