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Finding the Fourth Proportional to 10,558.99, 15,835.99 and 3,539.26

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Solution

The fourth proportional to 10,558.99, 15,835.99 and 3,539.26 is: 5,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.99 : 15,835.99 = 3,539.26 : x
  2. Step 2: Convert to fraction form
    10,558.99/15,835.99 = 3,539.26/x
  3. Step 3: Cross multiply
    10,558.99x = 15,835.99 × 3,539.26
  4. Step 4: Simplify right side
    10,558.99x = 56,047,685.97
  5. Step 5: Solve for x
    x = 56,047,685.97/10,558.99
  6. Step 6: Final answer
    x = 5,308.05

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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.