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Finding the Fourth Proportional to 11,372.50, 15,693.63 and 6,656.68

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Solution

The fourth proportional to 11,372.50, 15,693.63 and 6,656.68 is: 9,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.50 : 15,693.63 = 6,656.68 : x
  2. Step 2: Convert to fraction form
    11,372.50/15,693.63 = 6,656.68/x
  3. Step 3: Cross multiply
    11,372.50x = 15,693.63 × 6,656.68
  4. Step 4: Simplify right side
    11,372.50x = 104,467,394.48
  5. Step 5: Solve for x
    x = 104,467,394.48/11,372.50
  6. Step 6: Final answer
    x = 9,185.97

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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.