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Finding the Fourth Proportional to 7,600.84, 10,489.08 and 4,288.84

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Solution

The fourth proportional to 7,600.84, 10,489.08 and 4,288.84 is: 5,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,600.84 : 10,489.08 = 4,288.84 : x
  2. Step 2: Convert to fraction form
    7,600.84/10,489.08 = 4,288.84/x
  3. Step 3: Cross multiply
    7,600.84x = 10,489.08 × 4,288.84
  4. Step 4: Simplify right side
    7,600.84x = 44,985,985.87
  5. Step 5: Solve for x
    x = 44,985,985.87/7,600.84
  6. Step 6: Final answer
    x = 5,918.55

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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.