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Finding the Fourth Proportional to 45,169.66, 67,777.62 and 21,503.98

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Solution

The fourth proportional to 45,169.66, 67,777.62 and 21,503.98 is: 32,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,169.66 : 67,777.62 = 21,503.98 : x
  2. Step 2: Convert to fraction form
    45,169.66/67,777.62 = 21,503.98/x
  3. Step 3: Cross multiply
    45,169.66x = 67,777.62 × 21,503.98
  4. Step 4: Simplify right side
    45,169.66x = 1,457,488,584.93
  5. Step 5: Solve for x
    x = 1,457,488,584.93/45,169.66
  6. Step 6: Final answer
    x = 32,266.98

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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.