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Finding the Fourth Proportional to 19,795,384.80, 29,693,077.20 and 19,476,520.20

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Solution

The fourth proportional to 19,795,384.80, 29,693,077.20 and 19,476,520.20 is: 29,214,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795,384.80 : 29,693,077.20 = 19,476,520.20 : x
  2. Step 2: Convert to fraction form
    19,795,384.80/29,693,077.20 = 19,476,520.20/x
  3. Step 3: Cross multiply
    19,795,384.80x = 29,693,077.20 × 19,476,520.20
  4. Step 4: Simplify right side
    19,795,384.80x = 578,317,817,885,959.38
  5. Step 5: Solve for x
    x = 578,317,817,885,959.38/19,795,384.80
  6. Step 6: Final answer
    x = 29,214,780.30

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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.