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Finding the Fourth Proportional to 18,368.92, 27,561.19 and 10,039.21

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Solution

The fourth proportional to 18,368.92, 27,561.19 and 10,039.21 is: 15,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.92 : 27,561.19 = 10,039.21 : x
  2. Step 2: Convert to fraction form
    18,368.92/27,561.19 = 10,039.21/x
  3. Step 3: Cross multiply
    18,368.92x = 27,561.19 × 10,039.21
  4. Step 4: Simplify right side
    18,368.92x = 276,692,549.96
  5. Step 5: Solve for x
    x = 276,692,549.96/18,368.92
  6. Step 6: Final answer
    x = 15,063.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.