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Finding the Fourth Proportional to 12,798,002.70, 19,197,004.05 and 8,493,330.60

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Solution

The fourth proportional to 12,798,002.70, 19,197,004.05 and 8,493,330.60 is: 12,739,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,002.70 : 19,197,004.05 = 8,493,330.60 : x
  2. Step 2: Convert to fraction form
    12,798,002.70/19,197,004.05 = 8,493,330.60/x
  3. Step 3: Cross multiply
    12,798,002.70x = 19,197,004.05 × 8,493,330.60
  4. Step 4: Simplify right side
    12,798,002.70x = 163,046,501,926,188.94
  5. Step 5: Solve for x
    x = 163,046,501,926,188.94/12,798,002.70
  6. Step 6: Final answer
    x = 12,739,995.90

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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.