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Finding the Fourth Proportional to 3,503.42, 5,257.16 and 1,313.67

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Solution

The fourth proportional to 3,503.42, 5,257.16 and 1,313.67 is: 1,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.42 : 5,257.16 = 1,313.67 : x
  2. Step 2: Convert to fraction form
    3,503.42/5,257.16 = 1,313.67/x
  3. Step 3: Cross multiply
    3,503.42x = 5,257.16 × 1,313.67
  4. Step 4: Simplify right side
    3,503.42x = 6,906,166.81
  5. Step 5: Solve for x
    x = 6,906,166.81/3,503.42
  6. Step 6: Final answer
    x = 1,971.27

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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.