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Finding the Fourth Proportional to 2,980.02, 4,111.83 and 1,653.54

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Solution

The fourth proportional to 2,980.02, 4,111.83 and 1,653.54 is: 2,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.02 : 4,111.83 = 1,653.54 : x
  2. Step 2: Convert to fraction form
    2,980.02/4,111.83 = 1,653.54/x
  3. Step 3: Cross multiply
    2,980.02x = 4,111.83 × 1,653.54
  4. Step 4: Simplify right side
    2,980.02x = 6,799,075.38
  5. Step 5: Solve for x
    x = 6,799,075.38/2,980.02
  6. Step 6: Final answer
    x = 2,281.55

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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.