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Finding the Fourth Proportional to 18,549.81, 25,598.03 and 10,166.31

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Solution

The fourth proportional to 18,549.81, 25,598.03 and 10,166.31 is: 14,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.81 : 25,598.03 = 10,166.31 : x
  2. Step 2: Convert to fraction form
    18,549.81/25,598.03 = 10,166.31/x
  3. Step 3: Cross multiply
    18,549.81x = 25,598.03 × 10,166.31
  4. Step 4: Simplify right side
    18,549.81x = 260,237,457.54
  5. Step 5: Solve for x
    x = 260,237,457.54/18,549.81
  6. Step 6: Final answer
    x = 14,029.12

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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.