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Finding the Fourth Proportional to 7,608.53, 11,385.05 and 4,490.03

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Solution

The fourth proportional to 7,608.53, 11,385.05 and 4,490.03 is: 6,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.53 : 11,385.05 = 4,490.03 : x
  2. Step 2: Convert to fraction form
    7,608.53/11,385.05 = 4,490.03/x
  3. Step 3: Cross multiply
    7,608.53x = 11,385.05 × 4,490.03
  4. Step 4: Simplify right side
    7,608.53x = 51,119,222.06
  5. Step 5: Solve for x
    x = 51,119,222.06/7,608.53
  6. Step 6: Final answer
    x = 6,718.67

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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.