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Finding the Fourth Proportional to 2,547.83, 3,821.81 and 792.84

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Solution

The fourth proportional to 2,547.83, 3,821.81 and 792.84 is: 1,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.83 : 3,821.81 = 792.84 : x
  2. Step 2: Convert to fraction form
    2,547.83/3,821.81 = 792.84/x
  3. Step 3: Cross multiply
    2,547.83x = 3,821.81 × 792.84
  4. Step 4: Simplify right side
    2,547.83x = 3,030,065.54
  5. Step 5: Solve for x
    x = 3,030,065.54/2,547.83
  6. Step 6: Final answer
    x = 1,189.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.