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Finding the Fourth Proportional to 18,482.64, 27,723.68 and 8,616.30

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Solution

The fourth proportional to 18,482.64, 27,723.68 and 8,616.30 is: 12,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.64 : 27,723.68 = 8,616.30 : x
  2. Step 2: Convert to fraction form
    18,482.64/27,723.68 = 8,616.30/x
  3. Step 3: Cross multiply
    18,482.64x = 27,723.68 × 8,616.30
  4. Step 4: Simplify right side
    18,482.64x = 238,875,543.98
  5. Step 5: Solve for x
    x = 238,875,543.98/18,482.64
  6. Step 6: Final answer
    x = 12,924.32

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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.