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Finding the Fourth Proportional to 67,072.89, 92,468.10 and 53,506.98

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Solution

The fourth proportional to 67,072.89, 92,468.10 and 53,506.98 is: 73,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,072.89 : 92,468.10 = 53,506.98 : x
  2. Step 2: Convert to fraction form
    67,072.89/92,468.10 = 53,506.98/x
  3. Step 3: Cross multiply
    67,072.89x = 92,468.10 × 53,506.98
  4. Step 4: Simplify right side
    67,072.89x = 4,947,688,777.34
  5. Step 5: Solve for x
    x = 4,947,688,777.34/67,072.89
  6. Step 6: Final answer
    x = 73,765.85

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1.5x scale

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.