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Finding the Fourth Proportional to 7,373.60, 10,168.08 and 6,766.40

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Solution

The fourth proportional to 7,373.60, 10,168.08 and 6,766.40 is: 9,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,373.60 : 10,168.08 = 6,766.40 : x
  2. Step 2: Convert to fraction form
    7,373.60/10,168.08 = 6,766.40/x
  3. Step 3: Cross multiply
    7,373.60x = 10,168.08 × 6,766.40
  4. Step 4: Simplify right side
    7,373.60x = 68,801,296.51
  5. Step 5: Solve for x
    x = 68,801,296.51/7,373.60
  6. Step 6: Final answer
    x = 9,330.76

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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.