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Finding the Fourth Proportional to 9,783,387.59, 13,502,320.59 and 5,915,936.21

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Solution

The fourth proportional to 9,783,387.59, 13,502,320.59 and 5,915,936.21 is: 8,164,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783,387.59 : 13,502,320.59 = 5,915,936.21 : x
  2. Step 2: Convert to fraction form
    9,783,387.59/13,502,320.59 = 5,915,936.21/x
  3. Step 3: Cross multiply
    9,783,387.59x = 13,502,320.59 × 5,915,936.21
  4. Step 4: Simplify right side
    9,783,387.59x = 79,878,867,229,897.97
  5. Step 5: Solve for x
    x = 79,878,867,229,897.97/9,783,387.59
  6. Step 6: Final answer
    x = 8,164,745.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.