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Finding the Fourth Proportional to 8,945.13, 13,392.74 and 5,817.32

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Solution

The fourth proportional to 8,945.13, 13,392.74 and 5,817.32 is: 8,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.13 : 13,392.74 = 5,817.32 : x
  2. Step 2: Convert to fraction form
    8,945.13/13,392.74 = 5,817.32/x
  3. Step 3: Cross multiply
    8,945.13x = 13,392.74 × 5,817.32
  4. Step 4: Simplify right side
    8,945.13x = 77,909,852.06
  5. Step 5: Solve for x
    x = 77,909,852.06/8,945.13
  6. Step 6: Final answer
    x = 8,709.75

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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.