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Finding the Fourth Proportional to 17,791,278.80, 26,686,918.20 and 16,405,595.60

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Solution

The fourth proportional to 17,791,278.80, 26,686,918.20 and 16,405,595.60 is: 24,608,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791,278.80 : 26,686,918.20 = 16,405,595.60 : x
  2. Step 2: Convert to fraction form
    17,791,278.80/26,686,918.20 = 16,405,595.60/x
  3. Step 3: Cross multiply
    17,791,278.80x = 26,686,918.20 × 16,405,595.60
  4. Step 4: Simplify right side
    17,791,278.80x = 437,814,787,799,479.88
  5. Step 5: Solve for x
    x = 437,814,787,799,479.88/17,791,278.80
  6. Step 6: Final answer
    x = 24,608,393.40

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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.