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Finding the Fourth Proportional to 8,765,087.55, 13,147,631.33 and 8,765,087.55

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Solution

The fourth proportional to 8,765,087.55, 13,147,631.33 and 8,765,087.55 is: 13,147,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765,087.55 : 13,147,631.33 = 8,765,087.55 : x
  2. Step 2: Convert to fraction form
    8,765,087.55/13,147,631.33 = 8,765,087.55/x
  3. Step 3: Cross multiply
    8,765,087.55x = 13,147,631.33 × 8,765,087.55
  4. Step 4: Simplify right side
    8,765,087.55x = 115,240,139,638,747.50
  5. Step 5: Solve for x
    x = 115,240,139,638,747.50/8,765,087.55
  6. Step 6: Final answer
    x = 13,147,631.33

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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.