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Finding the Fourth Proportional to 12,525.16, 17,285.88 and 6,936.16

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Solution

The fourth proportional to 12,525.16, 17,285.88 and 6,936.16 is: 9,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.16 : 17,285.88 = 6,936.16 : x
  2. Step 2: Convert to fraction form
    12,525.16/17,285.88 = 6,936.16/x
  3. Step 3: Cross multiply
    12,525.16x = 17,285.88 × 6,936.16
  4. Step 4: Simplify right side
    12,525.16x = 119,897,629.42
  5. Step 5: Solve for x
    x = 119,897,629.42/12,525.16
  6. Step 6: Final answer
    x = 9,572.54

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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.