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Finding the Fourth Proportional to 66,915.44, 92,343.30 and 37,107.44

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Solution

The fourth proportional to 66,915.44, 92,343.30 and 37,107.44 is: 51,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.44 : 92,343.30 = 37,107.44 : x
  2. Step 2: Convert to fraction form
    66,915.44/92,343.30 = 37,107.44/x
  3. Step 3: Cross multiply
    66,915.44x = 92,343.30 × 37,107.44
  4. Step 4: Simplify right side
    66,915.44x = 3,426,623,464.15
  5. Step 5: Solve for x
    x = 3,426,623,464.15/66,915.44
  6. Step 6: Final answer
    x = 51,208.26

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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.