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Finding the Fourth Proportional to 7,117.65, 10,664.16 and 5,536.86

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Solution

The fourth proportional to 7,117.65, 10,664.16 and 5,536.86 is: 8,295.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.65 : 10,664.16 = 5,536.86 : x
  2. Step 2: Convert to fraction form
    7,117.65/10,664.16 = 5,536.86/x
  3. Step 3: Cross multiply
    7,117.65x = 10,664.16 × 5,536.86
  4. Step 4: Simplify right side
    7,117.65x = 59,045,960.94
  5. Step 5: Solve for x
    x = 59,045,960.94/7,117.65
  6. Step 6: Final answer
    x = 8,295.71

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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.