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Finding the Fourth Proportional to 57,716.40, 86,574.60 and 26,551.65

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Solution

The fourth proportional to 57,716.40, 86,574.60 and 26,551.65 is: 39,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,716.40 : 86,574.60 = 26,551.65 : x
  2. Step 2: Convert to fraction form
    57,716.40/86,574.60 = 26,551.65/x
  3. Step 3: Cross multiply
    57,716.40x = 86,574.60 × 26,551.65
  4. Step 4: Simplify right side
    57,716.40x = 2,298,698,478.09
  5. Step 5: Solve for x
    x = 2,298,698,478.09/57,716.40
  6. Step 6: Final answer
    x = 39,827.48

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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.