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Finding the Fourth Proportional to 7,722.87, 11,484.96 and 7,476.84

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Solution

The fourth proportional to 7,722.87, 11,484.96 and 7,476.84 is: 11,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.87 : 11,484.96 = 7,476.84 : x
  2. Step 2: Convert to fraction form
    7,722.87/11,484.96 = 7,476.84/x
  3. Step 3: Cross multiply
    7,722.87x = 11,484.96 × 7,476.84
  4. Step 4: Simplify right side
    7,722.87x = 85,871,165.26
  5. Step 5: Solve for x
    x = 85,871,165.26/7,722.87
  6. Step 6: Final answer
    x = 11,119.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.