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Finding the Fourth Proportional to 3,678,783.52, 5,552,731.11 and 3,678,783.52

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Solution

The fourth proportional to 3,678,783.52, 5,552,731.11 and 3,678,783.52 is: 5,552,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678,783.52 : 5,552,731.11 = 3,678,783.52 : x
  2. Step 2: Convert to fraction form
    3,678,783.52/5,552,731.11 = 3,678,783.52/x
  3. Step 3: Cross multiply
    3,678,783.52x = 5,552,731.11 × 3,678,783.52
  4. Step 4: Simplify right side
    3,678,783.52x = 20,427,295,698,459.31
  5. Step 5: Solve for x
    x = 20,427,295,698,459.31/3,678,783.52
  6. Step 6: Final answer
    x = 5,552,731.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.