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Finding the Fourth Proportional to 63,122.95, 87,072.94 and 40,453.89

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Solution

The fourth proportional to 63,122.95, 87,072.94 and 40,453.89 is: 55,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,122.95 : 87,072.94 = 40,453.89 : x
  2. Step 2: Convert to fraction form
    63,122.95/87,072.94 = 40,453.89/x
  3. Step 3: Cross multiply
    63,122.95x = 87,072.94 × 40,453.89
  4. Step 4: Simplify right side
    63,122.95x = 3,522,439,136.74
  5. Step 5: Solve for x
    x = 3,522,439,136.74/63,122.95
  6. Step 6: Final answer
    x = 55,802.83

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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.