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Finding the Fourth Proportional to 9,322.60, 12,865.62 and 6,341.80

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Solution

The fourth proportional to 9,322.60, 12,865.62 and 6,341.80 is: 8,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.60 : 12,865.62 = 6,341.80 : x
  2. Step 2: Convert to fraction form
    9,322.60/12,865.62 = 6,341.80/x
  3. Step 3: Cross multiply
    9,322.60x = 12,865.62 × 6,341.80
  4. Step 4: Simplify right side
    9,322.60x = 81,591,188.92
  5. Step 5: Solve for x
    x = 81,591,188.92/9,322.60
  6. Step 6: Final answer
    x = 8,751.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.