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Finding the Fourth Proportional to 18,863,150.60, 28,294,725.90 and 18,863,150.60

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Solution

The fourth proportional to 18,863,150.60, 28,294,725.90 and 18,863,150.60 is: 28,294,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,150.60 : 28,294,725.90 = 18,863,150.60 : x
  2. Step 2: Convert to fraction form
    18,863,150.60/28,294,725.90 = 18,863,150.60/x
  3. Step 3: Cross multiply
    18,863,150.60x = 28,294,725.90 × 18,863,150.60
  4. Step 4: Simplify right side
    18,863,150.60x = 533,727,675,837,420.56
  5. Step 5: Solve for x
    x = 533,727,675,837,420.56/18,863,150.60
  6. Step 6: Final answer
    x = 28,294,725.90

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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.