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Finding the Fourth Proportional to 18,892.52, 28,339.04 and 5,041.52

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Solution

The fourth proportional to 18,892.52, 28,339.04 and 5,041.52 is: 7,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.52 : 28,339.04 = 5,041.52 : x
  2. Step 2: Convert to fraction form
    18,892.52/28,339.04 = 5,041.52/x
  3. Step 3: Cross multiply
    18,892.52x = 28,339.04 × 5,041.52
  4. Step 4: Simplify right side
    18,892.52x = 142,871,836.94
  5. Step 5: Solve for x
    x = 142,871,836.94/18,892.52
  6. Step 6: Final answer
    x = 7,562.35

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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.