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Finding the Fourth Proportional to 11,604.70, 17,388.15 and 7,210.18

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Solution

The fourth proportional to 11,604.70, 17,388.15 and 7,210.18 is: 10,803.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,604.70 : 17,388.15 = 7,210.18 : x
  2. Step 2: Convert to fraction form
    11,604.70/17,388.15 = 7,210.18/x
  3. Step 3: Cross multiply
    11,604.70x = 17,388.15 × 7,210.18
  4. Step 4: Simplify right side
    11,604.70x = 125,371,691.37
  5. Step 5: Solve for x
    x = 125,371,691.37/11,604.70
  6. Step 6: Final answer
    x = 10,803.53

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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.