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Finding the Fourth Proportional to 12,552,894.92, 18,836,606.90 and 5,265,702.06

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Solution

The fourth proportional to 12,552,894.92, 18,836,606.90 and 5,265,702.06 is: 7,901,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552,894.92 : 18,836,606.90 = 5,265,702.06 : x
  2. Step 2: Convert to fraction form
    12,552,894.92/18,836,606.90 = 5,265,702.06/x
  3. Step 3: Cross multiply
    12,552,894.92x = 18,836,606.90 × 5,265,702.06
  4. Step 4: Simplify right side
    12,552,894.92x = 99,187,959,730,411.69
  5. Step 5: Solve for x
    x = 99,187,959,730,411.69/12,552,894.92
  6. Step 6: Final answer
    x = 7,901,600.42

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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.