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Finding the Fourth Proportional to 2,976.04, 4,106.65 and 1,649.63

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Solution

The fourth proportional to 2,976.04, 4,106.65 and 1,649.63 is: 2,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.04 : 4,106.65 = 1,649.63 : x
  2. Step 2: Convert to fraction form
    2,976.04/4,106.65 = 1,649.63/x
  3. Step 3: Cross multiply
    2,976.04x = 4,106.65 × 1,649.63
  4. Step 4: Simplify right side
    2,976.04x = 6,774,443.05
  5. Step 5: Solve for x
    x = 6,774,443.05/2,976.04
  6. Step 6: Final answer
    x = 2,276.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.