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Finding the Fourth Proportional to 18,366.48, 27,586.71 and 10,985.49

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Solution

The fourth proportional to 18,366.48, 27,586.71 and 10,985.49 is: 16,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.48 : 27,586.71 = 10,985.49 : x
  2. Step 2: Convert to fraction form
    18,366.48/27,586.71 = 10,985.49/x
  3. Step 3: Cross multiply
    18,366.48x = 27,586.71 × 10,985.49
  4. Step 4: Simplify right side
    18,366.48x = 303,053,526.84
  5. Step 5: Solve for x
    x = 303,053,526.84/18,366.48
  6. Step 6: Final answer
    x = 16,500.36

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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.