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Finding the Fourth Proportional to 38,972,956.20, 54,651,718.20 and 38,972,956.20

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Solution

The fourth proportional to 38,972,956.20, 54,651,718.20 and 38,972,956.20 is: 54,651,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972,956.20 : 54,651,718.20 = 38,972,956.20 : x
  2. Step 2: Convert to fraction form
    38,972,956.20/54,651,718.20 = 38,972,956.20/x
  3. Step 3: Cross multiply
    38,972,956.20x = 54,651,718.20 × 38,972,956.20
  4. Step 4: Simplify right side
    38,972,956.20x = 2,129,939,019,663,343
  5. Step 5: Solve for x
    x = 2,129,939,019,663,343/38,972,956.20
  6. Step 6: Final answer
    x = 54,651,718.20

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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.