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Finding the Fourth Proportional to 8,577.13, 11,840.48 and 6,453.46

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Solution

The fourth proportional to 8,577.13, 11,840.48 and 6,453.46 is: 8,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.13 : 11,840.48 = 6,453.46 : x
  2. Step 2: Convert to fraction form
    8,577.13/11,840.48 = 6,453.46/x
  3. Step 3: Cross multiply
    8,577.13x = 11,840.48 × 6,453.46
  4. Step 4: Simplify right side
    8,577.13x = 76,412,064.06
  5. Step 5: Solve for x
    x = 76,412,064.06/8,577.13
  6. Step 6: Final answer
    x = 8,908.81

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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.