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Finding the Fourth Proportional to 57,798.30, 86,639.85 and 26,579.10

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Solution

The fourth proportional to 57,798.30, 86,639.85 and 26,579.10 is: 39,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.30 : 86,639.85 = 26,579.10 : x
  2. Step 2: Convert to fraction form
    57,798.30/86,639.85 = 26,579.10/x
  3. Step 3: Cross multiply
    57,798.30x = 86,639.85 × 26,579.10
  4. Step 4: Simplify right side
    57,798.30x = 2,302,809,237.14
  5. Step 5: Solve for x
    x = 2,302,809,237.14/57,798.30
  6. Step 6: Final answer
    x = 39,842.16

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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.