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Finding the Fourth Proportional to 6,632.78, 9,153.19 and 3,648.54

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Solution

The fourth proportional to 6,632.78, 9,153.19 and 3,648.54 is: 5,034.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.78 : 9,153.19 = 3,648.54 : x
  2. Step 2: Convert to fraction form
    6,632.78/9,153.19 = 3,648.54/x
  3. Step 3: Cross multiply
    6,632.78x = 9,153.19 × 3,648.54
  4. Step 4: Simplify right side
    6,632.78x = 33,395,779.84
  5. Step 5: Solve for x
    x = 33,395,779.84/6,632.78
  6. Step 6: Final answer
    x = 5,034.96

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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.