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Finding the Fourth Proportional to 2,995.93, 4,492.21 and 1,239.94

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Solution

The fourth proportional to 2,995.93, 4,492.21 and 1,239.94 is: 1,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.93 : 4,492.21 = 1,239.94 : x
  2. Step 2: Convert to fraction form
    2,995.93/4,492.21 = 1,239.94/x
  3. Step 3: Cross multiply
    2,995.93x = 4,492.21 × 1,239.94
  4. Step 4: Simplify right side
    2,995.93x = 5,570,070.87
  5. Step 5: Solve for x
    x = 5,570,070.87/2,995.93
  6. Step 6: Final answer
    x = 1,859.21

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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.