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Finding the Fourth Proportional to 7,066.75, 10,600.14 and 3,988.75

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Solution

The fourth proportional to 7,066.75, 10,600.14 and 3,988.75 is: 5,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.75 : 10,600.14 = 3,988.75 : x
  2. Step 2: Convert to fraction form
    7,066.75/10,600.14 = 3,988.75/x
  3. Step 3: Cross multiply
    7,066.75x = 10,600.14 × 3,988.75
  4. Step 4: Simplify right side
    7,066.75x = 42,281,308.43
  5. Step 5: Solve for x
    x = 42,281,308.43/7,066.75
  6. Step 6: Final answer
    x = 5,983.13

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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.