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Finding the Fourth Proportional to 8,958, 12,365.28 and 5,232

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Solution

The fourth proportional to 8,958, 12,365.28 and 5,232 is: 7,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958 : 12,365.28 = 5,232 : x
  2. Step 2: Convert to fraction form
    8,958/12,365.28 = 5,232/x
  3. Step 3: Cross multiply
    8,958x = 12,365.28 × 5,232
  4. Step 4: Simplify right side
    8,958x = 64,695,144.96
  5. Step 5: Solve for x
    x = 64,695,144.96/8,958
  6. Step 6: Final answer
    x = 7,222.05

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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.