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Finding the Fourth Proportional to 4,789.99, 7,188.26 and 1,670.01

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Solution

The fourth proportional to 4,789.99, 7,188.26 and 1,670.01 is: 2,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.99 : 7,188.26 = 1,670.01 : x
  2. Step 2: Convert to fraction form
    4,789.99/7,188.26 = 1,670.01/x
  3. Step 3: Cross multiply
    4,789.99x = 7,188.26 × 1,670.01
  4. Step 4: Simplify right side
    4,789.99x = 12,004,466.08
  5. Step 5: Solve for x
    x = 12,004,466.08/4,789.99
  6. Step 6: Final answer
    x = 2,506.16

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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.