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Finding the Fourth Proportional to 1,697.67, 2,551.32 and 1,004.47

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Solution

The fourth proportional to 1,697.67, 2,551.32 and 1,004.47 is: 1,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.67 : 2,551.32 = 1,004.47 : x
  2. Step 2: Convert to fraction form
    1,697.67/2,551.32 = 1,004.47/x
  3. Step 3: Cross multiply
    1,697.67x = 2,551.32 × 1,004.47
  4. Step 4: Simplify right side
    1,697.67x = 2,562,718.02
  5. Step 5: Solve for x
    x = 2,562,718.02/1,697.67
  6. Step 6: Final answer
    x = 1,509.55

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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.