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Finding the Fourth Proportional to 28,040,402.40, 39,313,250.40 and 28,040,402.40

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Solution

The fourth proportional to 28,040,402.40, 39,313,250.40 and 28,040,402.40 is: 39,313,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,402.40 : 39,313,250.40 = 28,040,402.40 : x
  2. Step 2: Convert to fraction form
    28,040,402.40/39,313,250.40 = 28,040,402.40/x
  3. Step 3: Cross multiply
    28,040,402.40x = 39,313,250.40 × 28,040,402.40
  4. Step 4: Simplify right side
    28,040,402.40x = 1,102,359,360,867,960.88
  5. Step 5: Solve for x
    x = 1,102,359,360,867,960.88/28,040,402.40
  6. Step 6: Final answer
    x = 39,313,250.40

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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.