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Finding the Fourth Proportional to 12,172.89, 16,798.56 and 6,583.89

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Solution

The fourth proportional to 12,172.89, 16,798.56 and 6,583.89 is: 9,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.89 : 16,798.56 = 6,583.89 : x
  2. Step 2: Convert to fraction form
    12,172.89/16,798.56 = 6,583.89/x
  3. Step 3: Cross multiply
    12,172.89x = 16,798.56 × 6,583.89
  4. Step 4: Simplify right side
    12,172.89x = 110,599,871.20
  5. Step 5: Solve for x
    x = 110,599,871.20/12,172.89
  6. Step 6: Final answer
    x = 9,085.75

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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.