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Finding the Fourth Proportional to 5,886.14, 8,828.94 and 1,990.58

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Solution

The fourth proportional to 5,886.14, 8,828.94 and 1,990.58 is: 2,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.14 : 8,828.94 = 1,990.58 : x
  2. Step 2: Convert to fraction form
    5,886.14/8,828.94 = 1,990.58/x
  3. Step 3: Cross multiply
    5,886.14x = 8,828.94 × 1,990.58
  4. Step 4: Simplify right side
    5,886.14x = 17,574,711.39
  5. Step 5: Solve for x
    x = 17,574,711.39/5,886.14
  6. Step 6: Final answer
    x = 2,985.78

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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.