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Finding the Fourth Proportional to 1,656, 2,285.76 and 1,104

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Solution

The fourth proportional to 1,656, 2,285.76 and 1,104 is: 1,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656 : 2,285.76 = 1,104 : x
  2. Step 2: Convert to fraction form
    1,656/2,285.76 = 1,104/x
  3. Step 3: Cross multiply
    1,656x = 2,285.76 × 1,104
  4. Step 4: Simplify right side
    1,656x = 2,523,479.04
  5. Step 5: Solve for x
    x = 2,523,479.04/1,656
  6. Step 6: Final answer
    x = 1,523.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.