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Finding the Fourth Proportional to 9,323.96, 12,867.07 and 5,132.21

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Solution

The fourth proportional to 9,323.96, 12,867.07 and 5,132.21 is: 7,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.96 : 12,867.07 = 5,132.21 : x
  2. Step 2: Convert to fraction form
    9,323.96/12,867.07 = 5,132.21/x
  3. Step 3: Cross multiply
    9,323.96x = 12,867.07 × 5,132.21
  4. Step 4: Simplify right side
    9,323.96x = 66,036,479.66
  5. Step 5: Solve for x
    x = 66,036,479.66/9,323.96
  6. Step 6: Final answer
    x = 7,082.45

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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.