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Finding the Fourth Proportional to 2,969.63, 4,455.48 and 1,326.02

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Solution

The fourth proportional to 2,969.63, 4,455.48 and 1,326.02 is: 1,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.63 : 4,455.48 = 1,326.02 : x
  2. Step 2: Convert to fraction form
    2,969.63/4,455.48 = 1,326.02/x
  3. Step 3: Cross multiply
    2,969.63x = 4,455.48 × 1,326.02
  4. Step 4: Simplify right side
    2,969.63x = 5,908,055.59
  5. Step 5: Solve for x
    x = 5,908,055.59/2,969.63
  6. Step 6: Final answer
    x = 1,989.49

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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.