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Finding the Fourth Proportional to 4,702.88, 7,057.56 and 1,624.88

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Solution

The fourth proportional to 4,702.88, 7,057.56 and 1,624.88 is: 2,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.88 : 7,057.56 = 1,624.88 : x
  2. Step 2: Convert to fraction form
    4,702.88/7,057.56 = 1,624.88/x
  3. Step 3: Cross multiply
    4,702.88x = 7,057.56 × 1,624.88
  4. Step 4: Simplify right side
    4,702.88x = 11,467,652.81
  5. Step 5: Solve for x
    x = 11,467,652.81/4,702.88
  6. Step 6: Final answer
    x = 2,438.43

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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.