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Finding the Fourth Proportional to 77,609.07, 116,413.60 and 22,205.07

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Solution

The fourth proportional to 77,609.07, 116,413.60 and 22,205.07 is: 33,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.07 : 116,413.60 = 22,205.07 : x
  2. Step 2: Convert to fraction form
    77,609.07/116,413.60 = 22,205.07/x
  3. Step 3: Cross multiply
    77,609.07x = 116,413.60 × 22,205.07
  4. Step 4: Simplify right side
    77,609.07x = 2,584,972,136.95
  5. Step 5: Solve for x
    x = 2,584,972,136.95/77,609.07
  6. Step 6: Final answer
    x = 33,307.60

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1.5x scale

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.