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Finding the Fourth Proportional to 6,650.48, 9,975.36 and 5,412.08

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Solution

The fourth proportional to 6,650.48, 9,975.36 and 5,412.08 is: 8,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.48 : 9,975.36 = 5,412.08 : x
  2. Step 2: Convert to fraction form
    6,650.48/9,975.36 = 5,412.08/x
  3. Step 3: Cross multiply
    6,650.48x = 9,975.36 × 5,412.08
  4. Step 4: Simplify right side
    6,650.48x = 53,987,446.35
  5. Step 5: Solve for x
    x = 53,987,446.35/6,650.48
  6. Step 6: Final answer
    x = 8,117.83

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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.