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Finding the Fourth Proportional to 7,867.07, 11,783.63 and 3,700.84

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Solution

The fourth proportional to 7,867.07, 11,783.63 and 3,700.84 is: 5,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.07 : 11,783.63 = 3,700.84 : x
  2. Step 2: Convert to fraction form
    7,867.07/11,783.63 = 3,700.84/x
  3. Step 3: Cross multiply
    7,867.07x = 11,783.63 × 3,700.84
  4. Step 4: Simplify right side
    7,867.07x = 43,609,310.32
  5. Step 5: Solve for x
    x = 43,609,310.32/7,867.07
  6. Step 6: Final answer
    x = 5,543.27

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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.