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Finding the Fourth Proportional to 5,072.64, 7,000.02 and 2,834.64

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Solution

The fourth proportional to 5,072.64, 7,000.02 and 2,834.64 is: 3,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.64 : 7,000.02 = 2,834.64 : x
  2. Step 2: Convert to fraction form
    5,072.64/7,000.02 = 2,834.64/x
  3. Step 3: Cross multiply
    5,072.64x = 7,000.02 × 2,834.64
  4. Step 4: Simplify right side
    5,072.64x = 19,842,536.69
  5. Step 5: Solve for x
    x = 19,842,536.69/5,072.64
  6. Step 6: Final answer
    x = 3,911.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.