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Finding the Fourth Proportional to 2,696.99, 4,045.20 and 848.05

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Solution

The fourth proportional to 2,696.99, 4,045.20 and 848.05 is: 1,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.99 : 4,045.20 = 848.05 : x
  2. Step 2: Convert to fraction form
    2,696.99/4,045.20 = 848.05/x
  3. Step 3: Cross multiply
    2,696.99x = 4,045.20 × 848.05
  4. Step 4: Simplify right side
    2,696.99x = 3,430,518.57
  5. Step 5: Solve for x
    x = 3,430,518.57/2,696.99
  6. Step 6: Final answer
    x = 1,271.98

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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.