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Finding the Fourth Proportional to 16,642,695.20, 24,964,042.80 and 4,675,431.20

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Solution

The fourth proportional to 16,642,695.20, 24,964,042.80 and 4,675,431.20 is: 7,013,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642,695.20 : 24,964,042.80 = 4,675,431.20 : x
  2. Step 2: Convert to fraction form
    16,642,695.20/24,964,042.80 = 4,675,431.20/x
  3. Step 3: Cross multiply
    16,642,695.20x = 24,964,042.80 × 4,675,431.20
  4. Step 4: Simplify right side
    16,642,695.20x = 116,717,664,585,255.38
  5. Step 5: Solve for x
    x = 116,717,664,585,255.38/16,642,695.20
  6. Step 6: Final answer
    x = 7,013,146.80

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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.