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Finding the Fourth Proportional to 3,596.76, 5,394.98 and 999.64

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Solution

The fourth proportional to 3,596.76, 5,394.98 and 999.64 is: 1,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.76 : 5,394.98 = 999.64 : x
  2. Step 2: Convert to fraction form
    3,596.76/5,394.98 = 999.64/x
  3. Step 3: Cross multiply
    3,596.76x = 5,394.98 × 999.64
  4. Step 4: Simplify right side
    3,596.76x = 5,393,037.81
  5. Step 5: Solve for x
    x = 5,393,037.81/3,596.76
  6. Step 6: Final answer
    x = 1,499.42

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1.5x scale

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.