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Finding the Fourth Proportional to 14,652,005.80, 21,978,008.70 and 11,817,653.80

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Solution

The fourth proportional to 14,652,005.80, 21,978,008.70 and 11,817,653.80 is: 17,726,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,005.80 : 21,978,008.70 = 11,817,653.80 : x
  2. Step 2: Convert to fraction form
    14,652,005.80/21,978,008.70 = 11,817,653.80/x
  3. Step 3: Cross multiply
    14,652,005.80x = 21,978,008.70 × 11,817,653.80
  4. Step 4: Simplify right side
    14,652,005.80x = 259,728,498,029,988.06
  5. Step 5: Solve for x
    x = 259,728,498,029,988.06/14,652,005.80
  6. Step 6: Final answer
    x = 17,726,480.70

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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.