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Finding the Fourth Proportional to 12,573.56, 18,868.30 and 7,030.54

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Solution

The fourth proportional to 12,573.56, 18,868.30 and 7,030.54 is: 10,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.56 : 18,868.30 = 7,030.54 : x
  2. Step 2: Convert to fraction form
    12,573.56/18,868.30 = 7,030.54/x
  3. Step 3: Cross multiply
    12,573.56x = 18,868.30 × 7,030.54
  4. Step 4: Simplify right side
    12,573.56x = 132,654,337.88
  5. Step 5: Solve for x
    x = 132,654,337.88/12,573.56
  6. Step 6: Final answer
    x = 10,550.26

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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.