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Finding the Fourth Proportional to 3,773.12, 5,657.44 and 1,693.12

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Solution

The fourth proportional to 3,773.12, 5,657.44 and 1,693.12 is: 2,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,773.12 : 5,657.44 = 1,693.12 : x
  2. Step 2: Convert to fraction form
    3,773.12/5,657.44 = 1,693.12/x
  3. Step 3: Cross multiply
    3,773.12x = 5,657.44 × 1,693.12
  4. Step 4: Simplify right side
    3,773.12x = 9,578,724.81
  5. Step 5: Solve for x
    x = 9,578,724.81/3,773.12
  6. Step 6: Final answer
    x = 2,538.67

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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.