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Finding the Fourth Proportional to 9,144.14, 13,699.79 and 8,652.06

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Solution

The fourth proportional to 9,144.14, 13,699.79 and 8,652.06 is: 12,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.14 : 13,699.79 = 8,652.06 : x
  2. Step 2: Convert to fraction form
    9,144.14/13,699.79 = 8,652.06/x
  3. Step 3: Cross multiply
    9,144.14x = 13,699.79 × 8,652.06
  4. Step 4: Simplify right side
    9,144.14x = 118,531,426.70
  5. Step 5: Solve for x
    x = 118,531,426.70/9,144.14
  6. Step 6: Final answer
    x = 12,962.56

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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.