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Finding the Fourth Proportional to 5,225.32, 7,210.92 and 2,835.32

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Solution

The fourth proportional to 5,225.32, 7,210.92 and 2,835.32 is: 3,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.32 : 7,210.92 = 2,835.32 : x
  2. Step 2: Convert to fraction form
    5,225.32/7,210.92 = 2,835.32/x
  3. Step 3: Cross multiply
    5,225.32x = 7,210.92 × 2,835.32
  4. Step 4: Simplify right side
    5,225.32x = 20,445,265.69
  5. Step 5: Solve for x
    x = 20,445,265.69/5,225.32
  6. Step 6: Final answer
    x = 3,912.73

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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.