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Finding the Fourth Proportional to 2,133.95, 3,200.92 and 673.11

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Solution

The fourth proportional to 2,133.95, 3,200.92 and 673.11 is: 1,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.95 : 3,200.92 = 673.11 : x
  2. Step 2: Convert to fraction form
    2,133.95/3,200.92 = 673.11/x
  3. Step 3: Cross multiply
    2,133.95x = 3,200.92 × 673.11
  4. Step 4: Simplify right side
    2,133.95x = 2,154,569.58
  5. Step 5: Solve for x
    x = 2,154,569.58/2,133.95
  6. Step 6: Final answer
    x = 1,009.67

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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.