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Finding the Fourth Proportional to 15,959,953.80, 23,939,930.70 and 11,173,048.20

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Solution

The fourth proportional to 15,959,953.80, 23,939,930.70 and 11,173,048.20 is: 16,759,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959,953.80 : 23,939,930.70 = 11,173,048.20 : x
  2. Step 2: Convert to fraction form
    15,959,953.80/23,939,930.70 = 11,173,048.20/x
  3. Step 3: Cross multiply
    15,959,953.80x = 23,939,930.70 × 11,173,048.20
  4. Step 4: Simplify right side
    15,959,953.80x = 267,481,999,615,759.72
  5. Step 5: Solve for x
    x = 267,481,999,615,759.72/15,959,953.80
  6. Step 6: Final answer
    x = 16,759,572.30

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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.