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Finding the Fourth Proportional to 2,484.81, 3,727.64 and 841.36

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Solution

The fourth proportional to 2,484.81, 3,727.64 and 841.36 is: 1,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.81 : 3,727.64 = 841.36 : x
  2. Step 2: Convert to fraction form
    2,484.81/3,727.64 = 841.36/x
  3. Step 3: Cross multiply
    2,484.81x = 3,727.64 × 841.36
  4. Step 4: Simplify right side
    2,484.81x = 3,136,287.19
  5. Step 5: Solve for x
    x = 3,136,287.19/2,484.81
  6. Step 6: Final answer
    x = 1,262.18

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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.