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Finding the Fourth Proportional to 15,697.56, 23,565.78 and 6,936.60

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Solution

The fourth proportional to 15,697.56, 23,565.78 and 6,936.60 is: 10,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.56 : 23,565.78 = 6,936.60 : x
  2. Step 2: Convert to fraction form
    15,697.56/23,565.78 = 6,936.60/x
  3. Step 3: Cross multiply
    15,697.56x = 23,565.78 × 6,936.60
  4. Step 4: Simplify right side
    15,697.56x = 163,466,389.55
  5. Step 5: Solve for x
    x = 163,466,389.55/15,697.56
  6. Step 6: Final answer
    x = 10,413.49

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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.