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Finding the Fourth Proportional to 8,387.03, 11,567.18 and 5,693.82

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Solution

The fourth proportional to 8,387.03, 11,567.18 and 5,693.82 is: 7,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.03 : 11,567.18 = 5,693.82 : x
  2. Step 2: Convert to fraction form
    8,387.03/11,567.18 = 5,693.82/x
  3. Step 3: Cross multiply
    8,387.03x = 11,567.18 × 5,693.82
  4. Step 4: Simplify right side
    8,387.03x = 65,861,412.36
  5. Step 5: Solve for x
    x = 65,861,412.36/8,387.03
  6. Step 6: Final answer
    x = 7,852.77

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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.