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Finding the Fourth Proportional to 71,289.63, 98,382.24 and 39,026.52

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Solution

The fourth proportional to 71,289.63, 98,382.24 and 39,026.52 is: 53,857.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,289.63 : 98,382.24 = 39,026.52 : x
  2. Step 2: Convert to fraction form
    71,289.63/98,382.24 = 39,026.52/x
  3. Step 3: Cross multiply
    71,289.63x = 98,382.24 × 39,026.52
  4. Step 4: Simplify right side
    71,289.63x = 3,839,516,457.00
  5. Step 5: Solve for x
    x = 3,839,516,457.00/71,289.63
  6. Step 6: Final answer
    x = 53,857.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.