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Finding the Fourth Proportional to 43,647.36, 65,483.88 and 14,064.48

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Solution

The fourth proportional to 43,647.36, 65,483.88 and 14,064.48 is: 21,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,647.36 : 65,483.88 = 14,064.48 : x
  2. Step 2: Convert to fraction form
    43,647.36/65,483.88 = 14,064.48/x
  3. Step 3: Cross multiply
    43,647.36x = 65,483.88 × 14,064.48
  4. Step 4: Simplify right side
    43,647.36x = 920,996,720.58
  5. Step 5: Solve for x
    x = 920,996,720.58/43,647.36
  6. Step 6: Final answer
    x = 21,100.86

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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.