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Finding the Fourth Proportional to 14,652,026.70, 21,978,040.05 and 7,485,665.10

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Solution

The fourth proportional to 14,652,026.70, 21,978,040.05 and 7,485,665.10 is: 11,228,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,026.70 : 21,978,040.05 = 7,485,665.10 : x
  2. Step 2: Convert to fraction form
    14,652,026.70/21,978,040.05 = 7,485,665.10/x
  3. Step 3: Cross multiply
    14,652,026.70x = 21,978,040.05 × 7,485,665.10
  4. Step 4: Simplify right side
    14,652,026.70x = 164,520,247,368,687.25
  5. Step 5: Solve for x
    x = 164,520,247,368,687.25/14,652,026.70
  6. Step 6: Final answer
    x = 11,228,497.65

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Similar ratio
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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.