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Finding the Fourth Proportional to 45,915.48, 68,709.06 and 35,986.50

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Solution

The fourth proportional to 45,915.48, 68,709.06 and 35,986.50 is: 53,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.48 : 68,709.06 = 35,986.50 : x
  2. Step 2: Convert to fraction form
    45,915.48/68,709.06 = 35,986.50/x
  3. Step 3: Cross multiply
    45,915.48x = 68,709.06 × 35,986.50
  4. Step 4: Simplify right side
    45,915.48x = 2,472,598,587.69
  5. Step 5: Solve for x
    x = 2,472,598,587.69/45,915.48
  6. Step 6: Final answer
    x = 53,851.09

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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.