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Finding the Fourth Proportional to 17,765,314.80, 26,660,413.80 and 11,391,068.40

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Solution

The fourth proportional to 17,765,314.80, 26,660,413.80 and 11,391,068.40 is: 17,094,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765,314.80 : 26,660,413.80 = 11,391,068.40 : x
  2. Step 2: Convert to fraction form
    17,765,314.80/26,660,413.80 = 11,391,068.40/x
  3. Step 3: Cross multiply
    17,765,314.80x = 26,660,413.80 × 11,391,068.40
  4. Step 4: Simplify right side
    17,765,314.80x = 303,690,597,168,103.94
  5. Step 5: Solve for x
    x = 303,690,597,168,103.94/17,765,314.80
  6. Step 6: Final answer
    x = 17,094,580.12

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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.