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Finding the Fourth Proportional to 28,501.52, 42,755.02 and 7,441.93

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Solution

The fourth proportional to 28,501.52, 42,755.02 and 7,441.93 is: 11,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.52 : 42,755.02 = 7,441.93 : x
  2. Step 2: Convert to fraction form
    28,501.52/42,755.02 = 7,441.93/x
  3. Step 3: Cross multiply
    28,501.52x = 42,755.02 × 7,441.93
  4. Step 4: Simplify right side
    28,501.52x = 318,179,615.00
  5. Step 5: Solve for x
    x = 318,179,615.00/28,501.52
  6. Step 6: Final answer
    x = 11,163.60

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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.