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Finding the Fourth Proportional to 16,798,928.80, 25,179,730.80 and 9,231,325.60

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Solution

The fourth proportional to 16,798,928.80, 25,179,730.80 and 9,231,325.60 is: 13,836,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,798,928.80 : 25,179,730.80 = 9,231,325.60 : x
  2. Step 2: Convert to fraction form
    16,798,928.80/25,179,730.80 = 9,231,325.60/x
  3. Step 3: Cross multiply
    16,798,928.80x = 25,179,730.80 × 9,231,325.60
  4. Step 4: Simplify right side
    16,798,928.80x = 232,442,293,535,148.47
  5. Step 5: Solve for x
    x = 232,442,293,535,148.47/16,798,928.80
  6. Step 6: Final answer
    x = 13,836,733.06

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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.