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Finding the Fourth Proportional to 8,262.71, 11,402.63 and 4,485.90

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Solution

The fourth proportional to 8,262.71, 11,402.63 and 4,485.90 is: 6,190.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.71 : 11,402.63 = 4,485.90 : x
  2. Step 2: Convert to fraction form
    8,262.71/11,402.63 = 4,485.90/x
  3. Step 3: Cross multiply
    8,262.71x = 11,402.63 × 4,485.90
  4. Step 4: Simplify right side
    8,262.71x = 51,151,035.49
  5. Step 5: Solve for x
    x = 51,151,035.49/8,262.71
  6. Step 6: Final answer
    x = 6,190.59

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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.