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Finding the Fourth Proportional to 43,656.40, 65,494.20 and 14,069.20

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Solution

The fourth proportional to 43,656.40, 65,494.20 and 14,069.20 is: 21,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,656.40 : 65,494.20 = 14,069.20 : x
  2. Step 2: Convert to fraction form
    43,656.40/65,494.20 = 14,069.20/x
  3. Step 3: Cross multiply
    43,656.40x = 65,494.20 × 14,069.20
  4. Step 4: Simplify right side
    43,656.40x = 921,450,998.64
  5. Step 5: Solve for x
    x = 921,450,998.64/43,656.40
  6. Step 6: Final answer
    x = 21,106.89

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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.