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Finding the Fourth Proportional to 45,668.60, 68,501.94 and 21,044.60

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Solution

The fourth proportional to 45,668.60, 68,501.94 and 21,044.60 is: 31,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,668.60 : 68,501.94 = 21,044.60 : x
  2. Step 2: Convert to fraction form
    45,668.60/68,501.94 = 21,044.60/x
  3. Step 3: Cross multiply
    45,668.60x = 68,501.94 × 21,044.60
  4. Step 4: Simplify right side
    45,668.60x = 1,441,595,926.52
  5. Step 5: Solve for x
    x = 1,441,595,926.52/45,668.60
  6. Step 6: Final answer
    x = 31,566.46

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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.