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Finding the Fourth Proportional to 57,823.50, 86,735.26 and 14,047.50

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Solution

The fourth proportional to 57,823.50, 86,735.26 and 14,047.50 is: 21,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,823.50 : 86,735.26 = 14,047.50 : x
  2. Step 2: Convert to fraction form
    57,823.50/86,735.26 = 14,047.50/x
  3. Step 3: Cross multiply
    57,823.50x = 86,735.26 × 14,047.50
  4. Step 4: Simplify right side
    57,823.50x = 1,218,413,564.85
  5. Step 5: Solve for x
    x = 1,218,413,564.85/57,823.50
  6. Step 6: Final answer
    x = 21,071.25

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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.