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Finding the Fourth Proportional to 11,555.52, 17,317.04 and 6,617.76

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Solution

The fourth proportional to 11,555.52, 17,317.04 and 6,617.76 is: 9,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.52 : 17,317.04 = 6,617.76 : x
  2. Step 2: Convert to fraction form
    11,555.52/17,317.04 = 6,617.76/x
  3. Step 3: Cross multiply
    11,555.52x = 17,317.04 × 6,617.76
  4. Step 4: Simplify right side
    11,555.52x = 114,600,014.63
  5. Step 5: Solve for x
    x = 114,600,014.63/11,555.52
  6. Step 6: Final answer
    x = 9,917.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.