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Finding the Fourth Proportional to 19,804,836.80, 29,671,825.80 and 16,757,908.40

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Solution

The fourth proportional to 19,804,836.80, 29,671,825.80 and 16,757,908.40 is: 25,106,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804,836.80 : 29,671,825.80 = 16,757,908.40 : x
  2. Step 2: Convert to fraction form
    19,804,836.80/29,671,825.80 = 16,757,908.40/x
  3. Step 3: Cross multiply
    19,804,836.80x = 29,671,825.80 × 16,757,908.40
  4. Step 4: Simplify right side
    19,804,836.80x = 497,237,738,817,156.75
  5. Step 5: Solve for x
    x = 497,237,738,817,156.75/19,804,836.80
  6. Step 6: Final answer
    x = 25,106,883.93

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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.