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Finding the Fourth Proportional to 18,654,897.92, 27,961,120.62 and 11,352,251.39

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Solution

The fourth proportional to 18,654,897.92, 27,961,120.62 and 11,352,251.39 is: 17,015,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654,897.92 : 27,961,120.62 = 11,352,251.39 : x
  2. Step 2: Convert to fraction form
    18,654,897.92/27,961,120.62 = 11,352,251.39/x
  3. Step 3: Cross multiply
    18,654,897.92x = 27,961,120.62 × 11,352,251.39
  4. Step 4: Simplify right side
    18,654,897.92x = 317,421,670,284,547.06
  5. Step 5: Solve for x
    x = 317,421,670,284,547.06/18,654,897.92
  6. Step 6: Final answer
    x = 17,015,460.05

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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.