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Finding the Fourth Proportional to 19,966,660.80, 29,908,000.80 and 16,607,428.80

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Solution

The fourth proportional to 19,966,660.80, 29,908,000.80 and 16,607,428.80 is: 24,876,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966,660.80 : 29,908,000.80 = 16,607,428.80 : x
  2. Step 2: Convert to fraction form
    19,966,660.80/29,908,000.80 = 16,607,428.80/x
  3. Step 3: Cross multiply
    19,966,660.80x = 29,908,000.80 × 16,607,428.80
  4. Step 4: Simplify right side
    19,966,660.80x = 496,694,993,836,343.06
  5. Step 5: Solve for x
    x = 496,694,993,836,343.06/19,966,660.80
  6. Step 6: Final answer
    x = 24,876,217.35

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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.