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Finding the Fourth Proportional to 7,140.17, 10,715.13 and 2,523.17

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Solution

The fourth proportional to 7,140.17, 10,715.13 and 2,523.17 is: 3,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.17 : 10,715.13 = 2,523.17 : x
  2. Step 2: Convert to fraction form
    7,140.17/10,715.13 = 2,523.17/x
  3. Step 3: Cross multiply
    7,140.17x = 10,715.13 × 2,523.17
  4. Step 4: Simplify right side
    7,140.17x = 27,036,094.56
  5. Step 5: Solve for x
    x = 27,036,094.56/7,140.17
  6. Step 6: Final answer
    x = 3,786.48

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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.