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Finding the Fourth Proportional to 2,973.84, 4,463.76 and 1,243.68

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Solution

The fourth proportional to 2,973.84, 4,463.76 and 1,243.68 is: 1,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.84 : 4,463.76 = 1,243.68 : x
  2. Step 2: Convert to fraction form
    2,973.84/4,463.76 = 1,243.68/x
  3. Step 3: Cross multiply
    2,973.84x = 4,463.76 × 1,243.68
  4. Step 4: Simplify right side
    2,973.84x = 5,551,489.04
  5. Step 5: Solve for x
    x = 5,551,489.04/2,973.84
  6. Step 6: Final answer
    x = 1,866.77

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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.