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Finding the Fourth Proportional to 35,479.27, 53,239.52 and 13,308.09

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Solution

The fourth proportional to 35,479.27, 53,239.52 and 13,308.09 is: 19,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.27 : 53,239.52 = 13,308.09 : x
  2. Step 2: Convert to fraction form
    35,479.27/53,239.52 = 13,308.09/x
  3. Step 3: Cross multiply
    35,479.27x = 53,239.52 × 13,308.09
  4. Step 4: Simplify right side
    35,479.27x = 708,516,323.72
  5. Step 5: Solve for x
    x = 708,516,323.72/35,479.27
  6. Step 6: Final answer
    x = 19,969.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.