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Finding the Fourth Proportional to 66,280.34, 91,467.26 and 36,065.88

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Solution

The fourth proportional to 66,280.34, 91,467.26 and 36,065.88 is: 49,771.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,280.34 : 91,467.26 = 36,065.88 : x
  2. Step 2: Convert to fraction form
    66,280.34/91,467.26 = 36,065.88/x
  3. Step 3: Cross multiply
    66,280.34x = 91,467.26 × 36,065.88
  4. Step 4: Simplify right side
    66,280.34x = 3,298,847,042.76
  5. Step 5: Solve for x
    x = 3,298,847,042.76/66,280.34
  6. Step 6: Final answer
    x = 49,771.13

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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.