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Finding the Fourth Proportional to 11,753.60, 17,613.82 and 6,490.98

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Solution

The fourth proportional to 11,753.60, 17,613.82 and 6,490.98 is: 9,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,753.60 : 17,613.82 = 6,490.98 : x
  2. Step 2: Convert to fraction form
    11,753.60/17,613.82 = 6,490.98/x
  3. Step 3: Cross multiply
    11,753.60x = 17,613.82 × 6,490.98
  4. Step 4: Simplify right side
    11,753.60x = 114,330,953.34
  5. Step 5: Solve for x
    x = 114,330,953.34/11,753.60
  6. Step 6: Final answer
    x = 9,727.31

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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.