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Finding the Fourth Proportional to 27,745,408.20, 38,907,344.40 and 27,745,408.20

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Solution

The fourth proportional to 27,745,408.20, 38,907,344.40 and 27,745,408.20 is: 38,907,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745,408.20 : 38,907,344.40 = 27,745,408.20 : x
  2. Step 2: Convert to fraction form
    27,745,408.20/38,907,344.40 = 27,745,408.20/x
  3. Step 3: Cross multiply
    27,745,408.20x = 38,907,344.40 × 27,745,408.20
  4. Step 4: Simplify right side
    27,745,408.20x = 1,079,500,152,355,984
  5. Step 5: Solve for x
    x = 1,079,500,152,355,984/27,745,408.20
  6. Step 6: Final answer
    x = 38,907,344.40

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Double scale
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1.5x scale

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.