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Finding the Fourth Proportional to 9,396, 12,967.56 and 5,670

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Solution

The fourth proportional to 9,396, 12,967.56 and 5,670 is: 7,825.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396 : 12,967.56 = 5,670 : x
  2. Step 2: Convert to fraction form
    9,396/12,967.56 = 5,670/x
  3. Step 3: Cross multiply
    9,396x = 12,967.56 × 5,670
  4. Step 4: Simplify right side
    9,396x = 73,526,065.20
  5. Step 5: Solve for x
    x = 73,526,065.20/9,396
  6. Step 6: Final answer
    x = 7,825.25

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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.