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Finding the Fourth Proportional to 26,919,009.20, 40,378,513.80 and 25,112,109.80

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Solution

The fourth proportional to 26,919,009.20, 40,378,513.80 and 25,112,109.80 is: 37,668,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919,009.20 : 40,378,513.80 = 25,112,109.80 : x
  2. Step 2: Convert to fraction form
    26,919,009.20/40,378,513.80 = 25,112,109.80/x
  3. Step 3: Cross multiply
    26,919,009.20x = 40,378,513.80 × 25,112,109.80
  4. Step 4: Simplify right side
    26,919,009.20x = 1,013,989,672,106,415.25
  5. Step 5: Solve for x
    x = 1,013,989,672,106,415.25/26,919,009.20
  6. Step 6: Final answer
    x = 37,668,164.70

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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.