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Finding the Fourth Proportional to 8,993.60, 13,559.60 and 8,832.32

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Solution

The fourth proportional to 8,993.60, 13,559.60 and 8,832.32 is: 13,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.60 : 13,559.60 = 8,832.32 : x
  2. Step 2: Convert to fraction form
    8,993.60/13,559.60 = 8,832.32/x
  3. Step 3: Cross multiply
    8,993.60x = 13,559.60 × 8,832.32
  4. Step 4: Simplify right side
    8,993.60x = 119,762,726.27
  5. Step 5: Solve for x
    x = 119,762,726.27/8,993.60
  6. Step 6: Final answer
    x = 13,316.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.