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Finding the Fourth Proportional to 61,069.85, 91,604.78 and 61,069.85

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Solution

The fourth proportional to 61,069.85, 91,604.78 and 61,069.85 is: 91,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,069.85 : 91,604.78 = 61,069.85 : x
  2. Step 2: Convert to fraction form
    61,069.85/91,604.78 = 61,069.85/x
  3. Step 3: Cross multiply
    61,069.85x = 91,604.78 × 61,069.85
  4. Step 4: Simplify right side
    61,069.85x = 5,594,289,868.53
  5. Step 5: Solve for x
    x = 5,594,289,868.53/61,069.85
  6. Step 6: Final answer
    x = 91,604.78

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1.5x scale

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.