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Finding the Fourth Proportional to 13,235,930.65, 18,492,511.55 and 13,235,930.65

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Solution

The fourth proportional to 13,235,930.65, 18,492,511.55 and 13,235,930.65 is: 18,492,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235,930.65 : 18,492,511.55 = 13,235,930.65 : x
  2. Step 2: Convert to fraction form
    13,235,930.65/18,492,511.55 = 13,235,930.65/x
  3. Step 3: Cross multiply
    13,235,930.65x = 18,492,511.55 × 13,235,930.65
  4. Step 4: Simplify right side
    13,235,930.65x = 244,765,600,420,124.03
  5. Step 5: Solve for x
    x = 244,765,600,420,124.03/13,235,930.65
  6. Step 6: Final answer
    x = 18,492,511.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.