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Finding the Fourth Proportional to 43,594.80, 65,390.68 and 14,014.64

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Solution

The fourth proportional to 43,594.80, 65,390.68 and 14,014.64 is: 21,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,594.80 : 65,390.68 = 14,014.64 : x
  2. Step 2: Convert to fraction form
    43,594.80/65,390.68 = 14,014.64/x
  3. Step 3: Cross multiply
    43,594.80x = 65,390.68 × 14,014.64
  4. Step 4: Simplify right side
    43,594.80x = 916,426,839.56
  5. Step 5: Solve for x
    x = 916,426,839.56/43,594.80
  6. Step 6: Final answer
    x = 21,021.47

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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.