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Finding the Fourth Proportional to 7,332.64, 10,119.05 and 3,975.44

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Solution

The fourth proportional to 7,332.64, 10,119.05 and 3,975.44 is: 5,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.64 : 10,119.05 = 3,975.44 : x
  2. Step 2: Convert to fraction form
    7,332.64/10,119.05 = 3,975.44/x
  3. Step 3: Cross multiply
    7,332.64x = 10,119.05 × 3,975.44
  4. Step 4: Simplify right side
    7,332.64x = 40,227,620.57
  5. Step 5: Solve for x
    x = 40,227,620.57/7,332.64
  6. Step 6: Final answer
    x = 5,486.11

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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.