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Finding the Fourth Proportional to 26,359.63, 39,541.47 and 7,639.92

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Solution

The fourth proportional to 26,359.63, 39,541.47 and 7,639.92 is: 11,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,359.63 : 39,541.47 = 7,639.92 : x
  2. Step 2: Convert to fraction form
    26,359.63/39,541.47 = 7,639.92/x
  3. Step 3: Cross multiply
    26,359.63x = 39,541.47 × 7,639.92
  4. Step 4: Simplify right side
    26,359.63x = 302,093,431.58
  5. Step 5: Solve for x
    x = 302,093,431.58/26,359.63
  6. Step 6: Final answer
    x = 11,460.46

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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.