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Finding the Fourth Proportional to 9,323.88, 12,867.36 and 5,345.37

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Solution

The fourth proportional to 9,323.88, 12,867.36 and 5,345.37 is: 7,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.88 : 12,867.36 = 5,345.37 : x
  2. Step 2: Convert to fraction form
    9,323.88/12,867.36 = 5,345.37/x
  3. Step 3: Cross multiply
    9,323.88x = 12,867.36 × 5,345.37
  4. Step 4: Simplify right side
    9,323.88x = 68,780,800.12
  5. Step 5: Solve for x
    x = 68,780,800.12/9,323.88
  6. Step 6: Final answer
    x = 7,376.84

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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.