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Finding the Fourth Proportional to 8,262.88, 11,402.78 and 4,486.15

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Solution

The fourth proportional to 8,262.88, 11,402.78 and 4,486.15 is: 6,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.88 : 11,402.78 = 4,486.15 : x
  2. Step 2: Convert to fraction form
    8,262.88/11,402.78 = 4,486.15/x
  3. Step 3: Cross multiply
    8,262.88x = 11,402.78 × 4,486.15
  4. Step 4: Simplify right side
    8,262.88x = 51,154,573.32
  5. Step 5: Solve for x
    x = 51,154,573.32/8,262.88
  6. Step 6: Final answer
    x = 6,190.89

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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.