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Finding the Fourth Proportional to 9,335.55, 12,883.12 and 5,086.67

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Solution

The fourth proportional to 9,335.55, 12,883.12 and 5,086.67 is: 7,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,335.55 : 12,883.12 = 5,086.67 : x
  2. Step 2: Convert to fraction form
    9,335.55/12,883.12 = 5,086.67/x
  3. Step 3: Cross multiply
    9,335.55x = 12,883.12 × 5,086.67
  4. Step 4: Simplify right side
    9,335.55x = 65,532,102.88
  5. Step 5: Solve for x
    x = 65,532,102.88/9,335.55
  6. Step 6: Final answer
    x = 7,019.63

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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.