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Finding the Fourth Proportional to 7,620.09, 10,516.70 and 4,263.09

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Solution

The fourth proportional to 7,620.09, 10,516.70 and 4,263.09 is: 5,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.09 : 10,516.70 = 4,263.09 : x
  2. Step 2: Convert to fraction form
    7,620.09/10,516.70 = 4,263.09/x
  3. Step 3: Cross multiply
    7,620.09x = 10,516.70 × 4,263.09
  4. Step 4: Simplify right side
    7,620.09x = 44,833,617.29
  5. Step 5: Solve for x
    x = 44,833,617.29/7,620.09
  6. Step 6: Final answer
    x = 5,883.61

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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.