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Finding the Fourth Proportional to 17,880.59, 26,819.70 and 7,347.89

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Solution

The fourth proportional to 17,880.59, 26,819.70 and 7,347.89 is: 11,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.59 : 26,819.70 = 7,347.89 : x
  2. Step 2: Convert to fraction form
    17,880.59/26,819.70 = 7,347.89/x
  3. Step 3: Cross multiply
    17,880.59x = 26,819.70 × 7,347.89
  4. Step 4: Simplify right side
    17,880.59x = 197,068,057.56
  5. Step 5: Solve for x
    x = 197,068,057.56/17,880.59
  6. Step 6: Final answer
    x = 11,021.34

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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.