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Finding the Fourth Proportional to 34,369.60, 51,489.60 and 17,672.80

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Solution

The fourth proportional to 34,369.60, 51,489.60 and 17,672.80 is: 26,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,369.60 : 51,489.60 = 17,672.80 : x
  2. Step 2: Convert to fraction form
    34,369.60/51,489.60 = 17,672.80/x
  3. Step 3: Cross multiply
    34,369.60x = 51,489.60 × 17,672.80
  4. Step 4: Simplify right side
    34,369.60x = 909,965,402.88
  5. Step 5: Solve for x
    x = 909,965,402.88/34,369.60
  6. Step 6: Final answer
    x = 26,475.88

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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.