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Finding the Fourth Proportional to 12,324,663.90, 18,445,005.45 and 12,324,663.90

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Solution

The fourth proportional to 12,324,663.90, 18,445,005.45 and 12,324,663.90 is: 18,445,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324,663.90 : 18,445,005.45 = 12,324,663.90 : x
  2. Step 2: Convert to fraction form
    12,324,663.90/18,445,005.45 = 12,324,663.90/x
  3. Step 3: Cross multiply
    12,324,663.90x = 18,445,005.45 × 12,324,663.90
  4. Step 4: Simplify right side
    12,324,663.90x = 227,328,492,804,918.25
  5. Step 5: Solve for x
    x = 227,328,492,804,918.25/12,324,663.90
  6. Step 6: Final answer
    x = 18,445,005.45

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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.