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Finding the Fourth Proportional to 19,334,672.04, 28,999,644.48 and 7,973,644.44

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Solution

The fourth proportional to 19,334,672.04, 28,999,644.48 and 7,973,644.44 is: 11,959,491.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,334,672.04 : 28,999,644.48 = 7,973,644.44 : x
  2. Step 2: Convert to fraction form
    19,334,672.04/28,999,644.48 = 7,973,644.44/x
  3. Step 3: Cross multiply
    19,334,672.04x = 28,999,644.48 × 7,973,644.44
  4. Step 4: Simplify right side
    19,334,672.04x = 231,232,853,969,928.72
  5. Step 5: Solve for x
    x = 231,232,853,969,928.72/19,334,672.04
  6. Step 6: Final answer
    x = 11,959,491.92

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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.