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Finding the Fourth Proportional to 18,573.64, 27,868.67 and 7,501.96

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Solution

The fourth proportional to 18,573.64, 27,868.67 and 7,501.96 is: 11,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.64 : 27,868.67 = 7,501.96 : x
  2. Step 2: Convert to fraction form
    18,573.64/27,868.67 = 7,501.96/x
  3. Step 3: Cross multiply
    18,573.64x = 27,868.67 × 7,501.96
  4. Step 4: Simplify right side
    18,573.64x = 209,069,647.59
  5. Step 5: Solve for x
    x = 209,069,647.59/18,573.64
  6. Step 6: Final answer
    x = 11,256.26

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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.