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Finding the Fourth Proportional to 7,880.03, 11,824.66 and 4,372.99

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Solution

The fourth proportional to 7,880.03, 11,824.66 and 4,372.99 is: 6,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.03 : 11,824.66 = 4,372.99 : x
  2. Step 2: Convert to fraction form
    7,880.03/11,824.66 = 4,372.99/x
  3. Step 3: Cross multiply
    7,880.03x = 11,824.66 × 4,372.99
  4. Step 4: Simplify right side
    7,880.03x = 51,709,038.95
  5. Step 5: Solve for x
    x = 51,709,038.95/7,880.03
  6. Step 6: Final answer
    x = 6,562.03

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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.