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Finding the Fourth Proportional to 12,504.56, 17,262.56 and 9,665.52

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Solution

The fourth proportional to 12,504.56, 17,262.56 and 9,665.52 is: 13,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.56 : 17,262.56 = 9,665.52 : x
  2. Step 2: Convert to fraction form
    12,504.56/17,262.56 = 9,665.52/x
  3. Step 3: Cross multiply
    12,504.56x = 17,262.56 × 9,665.52
  4. Step 4: Simplify right side
    12,504.56x = 166,851,484.29
  5. Step 5: Solve for x
    x = 166,851,484.29/12,504.56
  6. Step 6: Final answer
    x = 13,343.26

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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.