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Finding the Fourth Proportional to 19,570.64, 29,353.55 and 8,330.49

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Solution

The fourth proportional to 19,570.64, 29,353.55 and 8,330.49 is: 12,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.64 : 29,353.55 = 8,330.49 : x
  2. Step 2: Convert to fraction form
    19,570.64/29,353.55 = 8,330.49/x
  3. Step 3: Cross multiply
    19,570.64x = 29,353.55 × 8,330.49
  4. Step 4: Simplify right side
    19,570.64x = 244,529,413.09
  5. Step 5: Solve for x
    x = 244,529,413.09/19,570.64
  6. Step 6: Final answer
    x = 12,494.71

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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.