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Finding the Fourth Proportional to 14,251,101.15, 19,665,992.72 and 7,724,590.49

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Solution

The fourth proportional to 14,251,101.15, 19,665,992.72 and 7,724,590.49 is: 10,659,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251,101.15 : 19,665,992.72 = 7,724,590.49 : x
  2. Step 2: Convert to fraction form
    14,251,101.15/19,665,992.72 = 7,724,590.49/x
  3. Step 3: Cross multiply
    14,251,101.15x = 19,665,992.72 × 7,724,590.49
  4. Step 4: Simplify right side
    14,251,101.15x = 151,911,740,204,368.31
  5. Step 5: Solve for x
    x = 151,911,740,204,368.31/14,251,101.15
  6. Step 6: Final answer
    x = 10,659,649.29

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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.