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Finding the Fourth Proportional to 3,582.66, 5,373.56 and 985.26

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Solution

The fourth proportional to 3,582.66, 5,373.56 and 985.26 is: 1,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.66 : 5,373.56 = 985.26 : x
  2. Step 2: Convert to fraction form
    3,582.66/5,373.56 = 985.26/x
  3. Step 3: Cross multiply
    3,582.66x = 5,373.56 × 985.26
  4. Step 4: Simplify right side
    3,582.66x = 5,294,353.73
  5. Step 5: Solve for x
    x = 5,294,353.73/3,582.66
  6. Step 6: Final answer
    x = 1,477.77

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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.