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Finding the Fourth Proportional to 43,174.85, 64,764.58 and 13,594.99

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Solution

The fourth proportional to 43,174.85, 64,764.58 and 13,594.99 is: 20,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,174.85 : 64,764.58 = 13,594.99 : x
  2. Step 2: Convert to fraction form
    43,174.85/64,764.58 = 13,594.99/x
  3. Step 3: Cross multiply
    43,174.85x = 64,764.58 × 13,594.99
  4. Step 4: Simplify right side
    43,174.85x = 880,473,711.13
  5. Step 5: Solve for x
    x = 880,473,711.13/43,174.85
  6. Step 6: Final answer
    x = 20,393.21

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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.