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Finding the Fourth Proportional to 9,899.79, 14,847.26 and 4,354.53

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Solution

The fourth proportional to 9,899.79, 14,847.26 and 4,354.53 is: 6,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.79 : 14,847.26 = 4,354.53 : x
  2. Step 2: Convert to fraction form
    9,899.79/14,847.26 = 4,354.53/x
  3. Step 3: Cross multiply
    9,899.79x = 14,847.26 × 4,354.53
  4. Step 4: Simplify right side
    9,899.79x = 64,652,817.32
  5. Step 5: Solve for x
    x = 64,652,817.32/9,899.79
  6. Step 6: Final answer
    x = 6,530.73

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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.