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Finding the Fourth Proportional to 14,042,340.90, 19,715,964.30 and 14,042,340.90

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Solution

The fourth proportional to 14,042,340.90, 19,715,964.30 and 14,042,340.90 is: 19,715,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042,340.90 : 19,715,964.30 = 14,042,340.90 : x
  2. Step 2: Convert to fraction form
    14,042,340.90/19,715,964.30 = 14,042,340.90/x
  3. Step 3: Cross multiply
    14,042,340.90x = 19,715,964.30 × 14,042,340.90
  4. Step 4: Simplify right side
    14,042,340.90x = 276,858,291,872,829.88
  5. Step 5: Solve for x
    x = 276,858,291,872,829.88/14,042,340.90
  6. Step 6: Final answer
    x = 19,715,964.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.