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Finding the Fourth Proportional to 18,443,009.60, 27,664,514.40 and 8,856,076.40

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Solution

The fourth proportional to 18,443,009.60, 27,664,514.40 and 8,856,076.40 is: 13,284,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,009.60 : 27,664,514.40 = 8,856,076.40 : x
  2. Step 2: Convert to fraction form
    18,443,009.60/27,664,514.40 = 8,856,076.40/x
  3. Step 3: Cross multiply
    18,443,009.60x = 27,664,514.40 × 8,856,076.40
  4. Step 4: Simplify right side
    18,443,009.60x = 244,999,053,095,300.16
  5. Step 5: Solve for x
    x = 244,999,053,095,300.16/18,443,009.60
  6. Step 6: Final answer
    x = 13,284,114.60

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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.