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Finding the Fourth Proportional to 13,842,468.44, 19,102,024.64 and 7,961,658.52

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Solution

The fourth proportional to 13,842,468.44, 19,102,024.64 and 7,961,658.52 is: 10,986,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842,468.44 : 19,102,024.64 = 7,961,658.52 : x
  2. Step 2: Convert to fraction form
    13,842,468.44/19,102,024.64 = 7,961,658.52/x
  3. Step 3: Cross multiply
    13,842,468.44x = 19,102,024.64 × 7,961,658.52
  4. Step 4: Simplify right side
    13,842,468.44x = 152,083,797,224,305.94
  5. Step 5: Solve for x
    x = 152,083,797,224,305.94/13,842,468.44
  6. Step 6: Final answer
    x = 10,986,754.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.