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Finding the Fourth Proportional to 9,820.70, 14,702.10 and 6,482.80

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Solution

The fourth proportional to 9,820.70, 14,702.10 and 6,482.80 is: 9,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.70 : 14,702.10 = 6,482.80 : x
  2. Step 2: Convert to fraction form
    9,820.70/14,702.10 = 6,482.80/x
  3. Step 3: Cross multiply
    9,820.70x = 14,702.10 × 6,482.80
  4. Step 4: Simplify right side
    9,820.70x = 95,310,773.88
  5. Step 5: Solve for x
    x = 95,310,773.88/9,820.70
  6. Step 6: Final answer
    x = 9,705.09

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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.