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Finding the Fourth Proportional to 45,892.40, 68,784.60 and 26,189.60

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Solution

The fourth proportional to 45,892.40, 68,784.60 and 26,189.60 is: 39,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,892.40 : 68,784.60 = 26,189.60 : x
  2. Step 2: Convert to fraction form
    45,892.40/68,784.60 = 26,189.60/x
  3. Step 3: Cross multiply
    45,892.40x = 68,784.60 × 26,189.60
  4. Step 4: Simplify right side
    45,892.40x = 1,801,441,160.16
  5. Step 5: Solve for x
    x = 1,801,441,160.16/45,892.40
  6. Step 6: Final answer
    x = 39,253.58

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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.