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Finding the Fourth Proportional to 7,693.60, 11,532.30 and 3,011.80

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Solution

The fourth proportional to 7,693.60, 11,532.30 and 3,011.80 is: 4,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.60 : 11,532.30 = 3,011.80 : x
  2. Step 2: Convert to fraction form
    7,693.60/11,532.30 = 3,011.80/x
  3. Step 3: Cross multiply
    7,693.60x = 11,532.30 × 3,011.80
  4. Step 4: Simplify right side
    7,693.60x = 34,732,981.14
  5. Step 5: Solve for x
    x = 34,732,981.14/7,693.60
  6. Step 6: Final answer
    x = 4,514.53

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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.