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Finding the Fourth Proportional to 66,756.61, 92,124.84 and 36,542.53

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Solution

The fourth proportional to 66,756.61, 92,124.84 and 36,542.53 is: 50,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.61 : 92,124.84 = 36,542.53 : x
  2. Step 2: Convert to fraction form
    66,756.61/92,124.84 = 36,542.53/x
  3. Step 3: Cross multiply
    66,756.61x = 92,124.84 × 36,542.53
  4. Step 4: Simplify right side
    66,756.61x = 3,366,474,729.45
  5. Step 5: Solve for x
    x = 3,366,474,729.45/66,756.61
  6. Step 6: Final answer
    x = 50,429.08

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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.