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Finding the Fourth Proportional to 60,302.70, 90,462.96 and 20,849.22

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Solution

The fourth proportional to 60,302.70, 90,462.96 and 20,849.22 is: 31,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,302.70 : 90,462.96 = 20,849.22 : x
  2. Step 2: Convert to fraction form
    60,302.70/90,462.96 = 20,849.22/x
  3. Step 3: Cross multiply
    60,302.70x = 90,462.96 × 20,849.22
  4. Step 4: Simplify right side
    60,302.70x = 1,886,082,154.89
  5. Step 5: Solve for x
    x = 1,886,082,154.89/60,302.70
  6. Step 6: Final answer
    x = 31,276.91

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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.