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Finding the Fourth Proportional to 45,662.76, 68,461.94 and 17,559.20

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Solution

The fourth proportional to 45,662.76, 68,461.94 and 17,559.20 is: 26,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,662.76 : 68,461.94 = 17,559.20 : x
  2. Step 2: Convert to fraction form
    45,662.76/68,461.94 = 17,559.20/x
  3. Step 3: Cross multiply
    45,662.76x = 68,461.94 × 17,559.20
  4. Step 4: Simplify right side
    45,662.76x = 1,202,137,111.90
  5. Step 5: Solve for x
    x = 1,202,137,111.90/45,662.76
  6. Step 6: Final answer
    x = 26,326.42

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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.