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Finding the Fourth Proportional to 8,903.74, 13,349.46 and 3,903.72

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Solution

The fourth proportional to 8,903.74, 13,349.46 and 3,903.72 is: 5,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.74 : 13,349.46 = 3,903.72 : x
  2. Step 2: Convert to fraction form
    8,903.74/13,349.46 = 3,903.72/x
  3. Step 3: Cross multiply
    8,903.74x = 13,349.46 × 3,903.72
  4. Step 4: Simplify right side
    8,903.74x = 52,112,553.99
  5. Step 5: Solve for x
    x = 52,112,553.99/8,903.74
  6. Step 6: Final answer
    x = 5,852.88

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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.