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Finding the Fourth Proportional to 7,486.93, 11,164.35 and 7,119.04

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Solution

The fourth proportional to 7,486.93, 11,164.35 and 7,119.04 is: 10,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.93 : 11,164.35 = 7,119.04 : x
  2. Step 2: Convert to fraction form
    7,486.93/11,164.35 = 7,119.04/x
  3. Step 3: Cross multiply
    7,486.93x = 11,164.35 × 7,119.04
  4. Step 4: Simplify right side
    7,486.93x = 79,479,426.31
  5. Step 5: Solve for x
    x = 79,479,426.31/7,486.93
  6. Step 6: Final answer
    x = 10,615.76

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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.