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Finding the Fourth Proportional to 7,499.01, 11,251.95 and 3,988.14

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Solution

The fourth proportional to 7,499.01, 11,251.95 and 3,988.14 is: 5,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.01 : 11,251.95 = 3,988.14 : x
  2. Step 2: Convert to fraction form
    7,499.01/11,251.95 = 3,988.14/x
  3. Step 3: Cross multiply
    7,499.01x = 11,251.95 × 3,988.14
  4. Step 4: Simplify right side
    7,499.01x = 44,874,294.72
  5. Step 5: Solve for x
    x = 44,874,294.72/7,499.01
  6. Step 6: Final answer
    x = 5,984.03

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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.