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Finding the Fourth Proportional to 2,389.86, 3,587.86 and 1,842.42

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Solution

The fourth proportional to 2,389.86, 3,587.86 and 1,842.42 is: 2,766.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.86 : 3,587.86 = 1,842.42 : x
  2. Step 2: Convert to fraction form
    2,389.86/3,587.86 = 1,842.42/x
  3. Step 3: Cross multiply
    2,389.86x = 3,587.86 × 1,842.42
  4. Step 4: Simplify right side
    2,389.86x = 6,610,345.02
  5. Step 5: Solve for x
    x = 6,610,345.02/2,389.86
  6. Step 6: Final answer
    x = 2,766.00

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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.