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Finding the Fourth Proportional to 7,704.54, 10,632.21 and 4,167.74

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Solution

The fourth proportional to 7,704.54, 10,632.21 and 4,167.74 is: 5,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.54 : 10,632.21 = 4,167.74 : x
  2. Step 2: Convert to fraction form
    7,704.54/10,632.21 = 4,167.74/x
  3. Step 3: Cross multiply
    7,704.54x = 10,632.21 × 4,167.74
  4. Step 4: Simplify right side
    7,704.54x = 44,312,286.91
  5. Step 5: Solve for x
    x = 44,312,286.91/7,704.54
  6. Step 6: Final answer
    x = 5,751.45

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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.