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Finding the Fourth Proportional to 1,669.84, 2,504.03 and 792.60

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Solution

The fourth proportional to 1,669.84, 2,504.03 and 792.60 is: 1,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.84 : 2,504.03 = 792.60 : x
  2. Step 2: Convert to fraction form
    1,669.84/2,504.03 = 792.60/x
  3. Step 3: Cross multiply
    1,669.84x = 2,504.03 × 792.60
  4. Step 4: Simplify right side
    1,669.84x = 1,984,686.77
  5. Step 5: Solve for x
    x = 1,984,686.77/1,669.84
  6. Step 6: Final answer
    x = 1,188.55

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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.