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Finding the Fourth Proportional to 66,894.42, 92,315.34 and 36,682.50

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Solution

The fourth proportional to 66,894.42, 92,315.34 and 36,682.50 is: 50,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,894.42 : 92,315.34 = 36,682.50 : x
  2. Step 2: Convert to fraction form
    66,894.42/92,315.34 = 36,682.50/x
  3. Step 3: Cross multiply
    66,894.42x = 92,315.34 × 36,682.50
  4. Step 4: Simplify right side
    66,894.42x = 3,386,357,459.55
  5. Step 5: Solve for x
    x = 3,386,357,459.55/66,894.42
  6. Step 6: Final answer
    x = 50,622.42

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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.