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Finding the Fourth Proportional to 70,413.56, 105,615.21 and 26,019.62

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Solution

The fourth proportional to 70,413.56, 105,615.21 and 26,019.62 is: 39,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,413.56 : 105,615.21 = 26,019.62 : x
  2. Step 2: Convert to fraction form
    70,413.56/105,615.21 = 26,019.62/x
  3. Step 3: Cross multiply
    70,413.56x = 105,615.21 × 26,019.62
  4. Step 4: Simplify right side
    70,413.56x = 2,748,067,630.42
  5. Step 5: Solve for x
    x = 2,748,067,630.42/70,413.56
  6. Step 6: Final answer
    x = 39,027.53

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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.