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Finding the Fourth Proportional to 5,330.72, 7,955 and 4,682.83

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Solution

The fourth proportional to 5,330.72, 7,955 and 4,682.83 is: 6,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.72 : 7,955 = 4,682.83 : x
  2. Step 2: Convert to fraction form
    5,330.72/7,955 = 4,682.83/x
  3. Step 3: Cross multiply
    5,330.72x = 7,955 × 4,682.83
  4. Step 4: Simplify right side
    5,330.72x = 37,251,912.65
  5. Step 5: Solve for x
    x = 37,251,912.65/5,330.72
  6. Step 6: Final answer
    x = 6,988.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.