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Finding the Fourth Proportional to 44,782.81, 67,171.78 and 13,615.63

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Solution

The fourth proportional to 44,782.81, 67,171.78 and 13,615.63 is: 20,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,782.81 : 67,171.78 = 13,615.63 : x
  2. Step 2: Convert to fraction form
    44,782.81/67,171.78 = 13,615.63/x
  3. Step 3: Cross multiply
    44,782.81x = 67,171.78 × 13,615.63
  4. Step 4: Simplify right side
    44,782.81x = 914,586,102.92
  5. Step 5: Solve for x
    x = 914,586,102.92/44,782.81
  6. Step 6: Final answer
    x = 20,422.70

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1.5x scale

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.