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Finding the Fourth Proportional to 9,362.03, 12,921.62 and 6,384.96

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Solution

The fourth proportional to 9,362.03, 12,921.62 and 6,384.96 is: 8,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.03 : 12,921.62 = 6,384.96 : x
  2. Step 2: Convert to fraction form
    9,362.03/12,921.62 = 6,384.96/x
  3. Step 3: Cross multiply
    9,362.03x = 12,921.62 × 6,384.96
  4. Step 4: Simplify right side
    9,362.03x = 82,503,994.91
  5. Step 5: Solve for x
    x = 82,503,994.91/9,362.03
  6. Step 6: Final answer
    x = 8,812.62

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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.