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Finding the Fourth Proportional to 8,573.96, 11,835.63 and 6,215.64

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Solution

The fourth proportional to 8,573.96, 11,835.63 and 6,215.64 is: 8,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.96 : 11,835.63 = 6,215.64 : x
  2. Step 2: Convert to fraction form
    8,573.96/11,835.63 = 6,215.64/x
  3. Step 3: Cross multiply
    8,573.96x = 11,835.63 × 6,215.64
  4. Step 4: Simplify right side
    8,573.96x = 73,566,015.25
  5. Step 5: Solve for x
    x = 73,566,015.25/8,573.96
  6. Step 6: Final answer
    x = 8,580.17

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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.