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Finding the Fourth Proportional to 23,684,390.88, 32,684,557.82 and 12,819,374.88

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Solution

The fourth proportional to 23,684,390.88, 32,684,557.82 and 12,819,374.88 is: 17,690,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,684,390.88 : 32,684,557.82 = 12,819,374.88 : x
  2. Step 2: Convert to fraction form
    23,684,390.88/32,684,557.82 = 12,819,374.88/x
  3. Step 3: Cross multiply
    23,684,390.88x = 32,684,557.82 × 12,819,374.88
  4. Step 4: Simplify right side
    23,684,390.88x = 418,995,599,481,615.56
  5. Step 5: Solve for x
    x = 418,995,599,481,615.56/23,684,390.88
  6. Step 6: Final answer
    x = 17,690,790.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.