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Finding the Fourth Proportional to 8,759.64, 13,158.90 and 8,483.16

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Solution

The fourth proportional to 8,759.64, 13,158.90 and 8,483.16 is: 12,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.64 : 13,158.90 = 8,483.16 : x
  2. Step 2: Convert to fraction form
    8,759.64/13,158.90 = 8,483.16/x
  3. Step 3: Cross multiply
    8,759.64x = 13,158.90 × 8,483.16
  4. Step 4: Simplify right side
    8,759.64x = 111,629,054.12
  5. Step 5: Solve for x
    x = 111,629,054.12/8,759.64
  6. Step 6: Final answer
    x = 12,743.57

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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.