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Finding the Fourth Proportional to 66,536.30, 99,832.80 and 34,970.60

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Solution

The fourth proportional to 66,536.30, 99,832.80 and 34,970.60 is: 52,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.30 : 99,832.80 = 34,970.60 : x
  2. Step 2: Convert to fraction form
    66,536.30/99,832.80 = 34,970.60/x
  3. Step 3: Cross multiply
    66,536.30x = 99,832.80 × 34,970.60
  4. Step 4: Simplify right side
    66,536.30x = 3,491,212,915.68
  5. Step 5: Solve for x
    x = 3,491,212,915.68/66,536.30
  6. Step 6: Final answer
    x = 52,470.80

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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.