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Finding the Fourth Proportional to 18,502.80, 27,754.20 and 16,461.60

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Solution

The fourth proportional to 18,502.80, 27,754.20 and 16,461.60 is: 24,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.80 : 27,754.20 = 16,461.60 : x
  2. Step 2: Convert to fraction form
    18,502.80/27,754.20 = 16,461.60/x
  3. Step 3: Cross multiply
    18,502.80x = 27,754.20 × 16,461.60
  4. Step 4: Simplify right side
    18,502.80x = 456,878,538.72
  5. Step 5: Solve for x
    x = 456,878,538.72/18,502.80
  6. Step 6: Final answer
    x = 24,692.40

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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.