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Finding the Fourth Proportional to 1,973.63, 2,961.35 and 741.14

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Solution

The fourth proportional to 1,973.63, 2,961.35 and 741.14 is: 1,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.63 : 2,961.35 = 741.14 : x
  2. Step 2: Convert to fraction form
    1,973.63/2,961.35 = 741.14/x
  3. Step 3: Cross multiply
    1,973.63x = 2,961.35 × 741.14
  4. Step 4: Simplify right side
    1,973.63x = 2,194,774.94
  5. Step 5: Solve for x
    x = 2,194,774.94/1,973.63
  6. Step 6: Final answer
    x = 1,112.05

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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.