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Finding the Fourth Proportional to 8,362.85, 11,555.07 and 8,063.50

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Solution

The fourth proportional to 8,362.85, 11,555.07 and 8,063.50 is: 11,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.85 : 11,555.07 = 8,063.50 : x
  2. Step 2: Convert to fraction form
    8,362.85/11,555.07 = 8,063.50/x
  3. Step 3: Cross multiply
    8,362.85x = 11,555.07 × 8,063.50
  4. Step 4: Simplify right side
    8,362.85x = 93,174,318.12
  5. Step 5: Solve for x
    x = 93,174,318.12/8,362.85
  6. Step 6: Final answer
    x = 11,141.46

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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.