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Finding the Fourth Proportional to 4,868.16, 7,302.24 and 1,405.92

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Solution

The fourth proportional to 4,868.16, 7,302.24 and 1,405.92 is: 2,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.16 : 7,302.24 = 1,405.92 : x
  2. Step 2: Convert to fraction form
    4,868.16/7,302.24 = 1,405.92/x
  3. Step 3: Cross multiply
    4,868.16x = 7,302.24 × 1,405.92
  4. Step 4: Simplify right side
    4,868.16x = 10,266,365.26
  5. Step 5: Solve for x
    x = 10,266,365.26/4,868.16
  6. Step 6: Final answer
    x = 2,108.88

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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.