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Finding the Fourth Proportional to 40,628.70, 56,070.63 and 23,638.14

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Solution

The fourth proportional to 40,628.70, 56,070.63 and 23,638.14 is: 32,622.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,628.70 : 56,070.63 = 23,638.14 : x
  2. Step 2: Convert to fraction form
    40,628.70/56,070.63 = 23,638.14/x
  3. Step 3: Cross multiply
    40,628.70x = 56,070.63 × 23,638.14
  4. Step 4: Simplify right side
    40,628.70x = 1,325,405,401.83
  5. Step 5: Solve for x
    x = 1,325,405,401.83/40,628.70
  6. Step 6: Final answer
    x = 32,622.39

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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.