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Finding the Fourth Proportional to 4,868.48, 7,299.84 and 1,907.12

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Solution

The fourth proportional to 4,868.48, 7,299.84 and 1,907.12 is: 2,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.48 : 7,299.84 = 1,907.12 : x
  2. Step 2: Convert to fraction form
    4,868.48/7,299.84 = 1,907.12/x
  3. Step 3: Cross multiply
    4,868.48x = 7,299.84 × 1,907.12
  4. Step 4: Simplify right side
    4,868.48x = 13,921,670.86
  5. Step 5: Solve for x
    x = 13,921,670.86/4,868.48
  6. Step 6: Final answer
    x = 2,859.55

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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.