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Finding the Fourth Proportional to 5,358.66, 7,394.90 and 3,000.84

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Solution

The fourth proportional to 5,358.66, 7,394.90 and 3,000.84 is: 4,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.66 : 7,394.90 = 3,000.84 : x
  2. Step 2: Convert to fraction form
    5,358.66/7,394.90 = 3,000.84/x
  3. Step 3: Cross multiply
    5,358.66x = 7,394.90 × 3,000.84
  4. Step 4: Simplify right side
    5,358.66x = 22,190,911.72
  5. Step 5: Solve for x
    x = 22,190,911.72/5,358.66
  6. Step 6: Final answer
    x = 4,141.13

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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.