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Finding the Fourth Proportional to 57,783.48, 86,556.96 and 39,969.96

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Solution

The fourth proportional to 57,783.48, 86,556.96 and 39,969.96 is: 59,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,783.48 : 86,556.96 = 39,969.96 : x
  2. Step 2: Convert to fraction form
    57,783.48/86,556.96 = 39,969.96/x
  3. Step 3: Cross multiply
    57,783.48x = 86,556.96 × 39,969.96
  4. Step 4: Simplify right side
    57,783.48x = 3,459,678,228.92
  5. Step 5: Solve for x
    x = 3,459,678,228.92/57,783.48
  6. Step 6: Final answer
    x = 59,873.14

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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.