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Finding the Fourth Proportional to 12,172.56, 16,798.05 and 6,583.56

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Solution

The fourth proportional to 12,172.56, 16,798.05 and 6,583.56 is: 9,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.56 : 16,798.05 = 6,583.56 : x
  2. Step 2: Convert to fraction form
    12,172.56/16,798.05 = 6,583.56/x
  3. Step 3: Cross multiply
    12,172.56x = 16,798.05 × 6,583.56
  4. Step 4: Simplify right side
    12,172.56x = 110,590,970.06
  5. Step 5: Solve for x
    x = 110,590,970.06/12,172.56
  6. Step 6: Final answer
    x = 9,085.27

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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.