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Finding the Fourth Proportional to 11,556.62, 15,948.52 and 7,018.52

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Solution

The fourth proportional to 11,556.62, 15,948.52 and 7,018.52 is: 9,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.62 : 15,948.52 = 7,018.52 : x
  2. Step 2: Convert to fraction form
    11,556.62/15,948.52 = 7,018.52/x
  3. Step 3: Cross multiply
    11,556.62x = 15,948.52 × 7,018.52
  4. Step 4: Simplify right side
    11,556.62x = 111,934,926.85
  5. Step 5: Solve for x
    x = 111,934,926.85/11,556.62
  6. Step 6: Final answer
    x = 9,685.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.