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Finding the Fourth Proportional to 5,721.48, 7,895.67 and 3,203.67

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Solution

The fourth proportional to 5,721.48, 7,895.67 and 3,203.67 is: 4,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.48 : 7,895.67 = 3,203.67 : x
  2. Step 2: Convert to fraction form
    5,721.48/7,895.67 = 3,203.67/x
  3. Step 3: Cross multiply
    5,721.48x = 7,895.67 × 3,203.67
  4. Step 4: Simplify right side
    5,721.48x = 25,295,121.11
  5. Step 5: Solve for x
    x = 25,295,121.11/5,721.48
  6. Step 6: Final answer
    x = 4,421.08

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1.5x scale

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.