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Finding the Fourth Proportional to 7,591.81, 10,476.19 and 4,405.20

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Solution

The fourth proportional to 7,591.81, 10,476.19 and 4,405.20 is: 6,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.81 : 10,476.19 = 4,405.20 : x
  2. Step 2: Convert to fraction form
    7,591.81/10,476.19 = 4,405.20/x
  3. Step 3: Cross multiply
    7,591.81x = 10,476.19 × 4,405.20
  4. Step 4: Simplify right side
    7,591.81x = 46,149,690.16
  5. Step 5: Solve for x
    x = 46,149,690.16/7,591.81
  6. Step 6: Final answer
    x = 6,078.88

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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.