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Finding the Fourth Proportional to 7,250.66, 10,842.78 and 5,403.06

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Solution

The fourth proportional to 7,250.66, 10,842.78 and 5,403.06 is: 8,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.66 : 10,842.78 = 5,403.06 : x
  2. Step 2: Convert to fraction form
    7,250.66/10,842.78 = 5,403.06/x
  3. Step 3: Cross multiply
    7,250.66x = 10,842.78 × 5,403.06
  4. Step 4: Simplify right side
    7,250.66x = 58,584,190.91
  5. Step 5: Solve for x
    x = 58,584,190.91/7,250.66
  6. Step 6: Final answer
    x = 8,079.84

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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.