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Finding the Fourth Proportional to 57,222.90, 85,842.45 and 17,775.90

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Solution

The fourth proportional to 57,222.90, 85,842.45 and 17,775.90 is: 26,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,222.90 : 85,842.45 = 17,775.90 : x
  2. Step 2: Convert to fraction form
    57,222.90/85,842.45 = 17,775.90/x
  3. Step 3: Cross multiply
    57,222.90x = 85,842.45 × 17,775.90
  4. Step 4: Simplify right side
    57,222.90x = 1,525,926,806.96
  5. Step 5: Solve for x
    x = 1,525,926,806.96/57,222.90
  6. Step 6: Final answer
    x = 26,666.37

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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.