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Finding the Fourth Proportional to 61,778.70, 92,584.62 and 45,060.30

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Solution

The fourth proportional to 61,778.70, 92,584.62 and 45,060.30 is: 67,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,778.70 : 92,584.62 = 45,060.30 : x
  2. Step 2: Convert to fraction form
    61,778.70/92,584.62 = 45,060.30/x
  3. Step 3: Cross multiply
    61,778.70x = 92,584.62 × 45,060.30
  4. Step 4: Simplify right side
    61,778.70x = 4,171,890,752.59
  5. Step 5: Solve for x
    x = 4,171,890,752.59/61,778.70
  6. Step 6: Final answer
    x = 67,529.60

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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.