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Finding the Fourth Proportional to 8,007.40, 11,046.18 and 5,354.92

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Solution

The fourth proportional to 8,007.40, 11,046.18 and 5,354.92 is: 7,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.40 : 11,046.18 = 5,354.92 : x
  2. Step 2: Convert to fraction form
    8,007.40/11,046.18 = 5,354.92/x
  3. Step 3: Cross multiply
    8,007.40x = 11,046.18 × 5,354.92
  4. Step 4: Simplify right side
    8,007.40x = 59,151,410.21
  5. Step 5: Solve for x
    x = 59,151,410.21/8,007.40
  6. Step 6: Final answer
    x = 7,387.09

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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.