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Finding the Fourth Proportional to 18,101.55, 24,979.11 and 10,549.11

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Solution

The fourth proportional to 18,101.55, 24,979.11 and 10,549.11 is: 14,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.55 : 24,979.11 = 10,549.11 : x
  2. Step 2: Convert to fraction form
    18,101.55/24,979.11 = 10,549.11/x
  3. Step 3: Cross multiply
    18,101.55x = 24,979.11 × 10,549.11
  4. Step 4: Simplify right side
    18,101.55x = 263,507,379.09
  5. Step 5: Solve for x
    x = 263,507,379.09/18,101.55
  6. Step 6: Final answer
    x = 14,557.17

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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.