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Finding the Fourth Proportional to 2,670.62, 4,006.40 and 1,004.60

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Solution

The fourth proportional to 2,670.62, 4,006.40 and 1,004.60 is: 1,507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.62 : 4,006.40 = 1,004.60 : x
  2. Step 2: Convert to fraction form
    2,670.62/4,006.40 = 1,004.60/x
  3. Step 3: Cross multiply
    2,670.62x = 4,006.40 × 1,004.60
  4. Step 4: Simplify right side
    2,670.62x = 4,024,829.44
  5. Step 5: Solve for x
    x = 4,024,829.44/2,670.62
  6. Step 6: Final answer
    x = 1,507.08

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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.