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Finding the Fourth Proportional to 7,885.46, 11,812.02 and 6,316.96

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Solution

The fourth proportional to 7,885.46, 11,812.02 and 6,316.96 is: 9,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.46 : 11,812.02 = 6,316.96 : x
  2. Step 2: Convert to fraction form
    7,885.46/11,812.02 = 6,316.96/x
  3. Step 3: Cross multiply
    7,885.46x = 11,812.02 × 6,316.96
  4. Step 4: Simplify right side
    7,885.46x = 74,616,057.86
  5. Step 5: Solve for x
    x = 74,616,057.86/7,885.46
  6. Step 6: Final answer
    x = 9,462.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.