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Finding the Fourth Proportional to 9,661.56, 14,495.99 and 3,421.32

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Solution

The fourth proportional to 9,661.56, 14,495.99 and 3,421.32 is: 5,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.56 : 14,495.99 = 3,421.32 : x
  2. Step 2: Convert to fraction form
    9,661.56/14,495.99 = 3,421.32/x
  3. Step 3: Cross multiply
    9,661.56x = 14,495.99 × 3,421.32
  4. Step 4: Simplify right side
    9,661.56x = 49,595,420.51
  5. Step 5: Solve for x
    x = 49,595,420.51/9,661.56
  6. Step 6: Final answer
    x = 5,133.27

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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.