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Finding the Fourth Proportional to 18,432,829.30, 27,649,243.95 and 18,432,829.30

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Solution

The fourth proportional to 18,432,829.30, 27,649,243.95 and 18,432,829.30 is: 27,649,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432,829.30 : 27,649,243.95 = 18,432,829.30 : x
  2. Step 2: Convert to fraction form
    18,432,829.30/27,649,243.95 = 18,432,829.30/x
  3. Step 3: Cross multiply
    18,432,829.30x = 27,649,243.95 × 18,432,829.30
  4. Step 4: Simplify right side
    18,432,829.30x = 509,653,794,004,407.75
  5. Step 5: Solve for x
    x = 509,653,794,004,407.75/18,432,829.30
  6. Step 6: Final answer
    x = 27,649,243.95

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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.