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Finding the Fourth Proportional to 4,702.70, 7,040.20 and 3,475.58

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Solution

The fourth proportional to 4,702.70, 7,040.20 and 3,475.58 is: 5,203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.70 : 7,040.20 = 3,475.58 : x
  2. Step 2: Convert to fraction form
    4,702.70/7,040.20 = 3,475.58/x
  3. Step 3: Cross multiply
    4,702.70x = 7,040.20 × 3,475.58
  4. Step 4: Simplify right side
    4,702.70x = 24,468,778.32
  5. Step 5: Solve for x
    x = 24,468,778.32/4,702.70
  6. Step 6: Final answer
    x = 5,203.13

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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.