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Finding the Fourth Proportional to 6,391.03, 9,583.31 and 2,925.31

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Solution

The fourth proportional to 6,391.03, 9,583.31 and 2,925.31 is: 4,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.03 : 9,583.31 = 2,925.31 : x
  2. Step 2: Convert to fraction form
    6,391.03/9,583.31 = 2,925.31/x
  3. Step 3: Cross multiply
    6,391.03x = 9,583.31 × 2,925.31
  4. Step 4: Simplify right side
    6,391.03x = 28,034,152.58
  5. Step 5: Solve for x
    x = 28,034,152.58/6,391.03
  6. Step 6: Final answer
    x = 4,386.48

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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.