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Finding the Fourth Proportional to 19,192,684.60, 28,789,026.90 and 19,192,684.60

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Solution

The fourth proportional to 19,192,684.60, 28,789,026.90 and 19,192,684.60 is: 28,789,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192,684.60 : 28,789,026.90 = 19,192,684.60 : x
  2. Step 2: Convert to fraction form
    19,192,684.60/28,789,026.90 = 19,192,684.60/x
  3. Step 3: Cross multiply
    19,192,684.60x = 28,789,026.90 × 19,192,684.60
  4. Step 4: Simplify right side
    19,192,684.60x = 552,538,713,232,615.75
  5. Step 5: Solve for x
    x = 552,538,713,232,615.75/19,192,684.60
  6. Step 6: Final answer
    x = 28,789,026.90

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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.