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Finding the Fourth Proportional to 2,045.86, 3,068.18 and 659.14

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Solution

The fourth proportional to 2,045.86, 3,068.18 and 659.14 is: 988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.86 : 3,068.18 = 659.14 : x
  2. Step 2: Convert to fraction form
    2,045.86/3,068.18 = 659.14/x
  3. Step 3: Cross multiply
    2,045.86x = 3,068.18 × 659.14
  4. Step 4: Simplify right side
    2,045.86x = 2,022,351.67
  5. Step 5: Solve for x
    x = 2,022,351.67/2,045.86
  6. Step 6: Final answer
    x = 988.51

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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.