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Finding the Fourth Proportional to 7,751.52, 10,698.12 and 4,609.44

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Solution

The fourth proportional to 7,751.52, 10,698.12 and 4,609.44 is: 6,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.52 : 10,698.12 = 4,609.44 : x
  2. Step 2: Convert to fraction form
    7,751.52/10,698.12 = 4,609.44/x
  3. Step 3: Cross multiply
    7,751.52x = 10,698.12 × 4,609.44
  4. Step 4: Simplify right side
    7,751.52x = 49,312,342.25
  5. Step 5: Solve for x
    x = 49,312,342.25/7,751.52
  6. Step 6: Final answer
    x = 6,361.64

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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.