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Finding the Fourth Proportional to 66,316.94, 91,522.11 and 37,247.66

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Solution

The fourth proportional to 66,316.94, 91,522.11 and 37,247.66 is: 51,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,316.94 : 91,522.11 = 37,247.66 : x
  2. Step 2: Convert to fraction form
    66,316.94/91,522.11 = 37,247.66/x
  3. Step 3: Cross multiply
    66,316.94x = 91,522.11 × 37,247.66
  4. Step 4: Simplify right side
    66,316.94x = 3,408,984,435.76
  5. Step 5: Solve for x
    x = 3,408,984,435.76/66,316.94
  6. Step 6: Final answer
    x = 51,404.43

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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.