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Finding the Fourth Proportional to 27,312.96, 40,979.25 and 9,546.21

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Solution

The fourth proportional to 27,312.96, 40,979.25 and 9,546.21 is: 14,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.96 : 40,979.25 = 9,546.21 : x
  2. Step 2: Convert to fraction form
    27,312.96/40,979.25 = 9,546.21/x
  3. Step 3: Cross multiply
    27,312.96x = 40,979.25 × 9,546.21
  4. Step 4: Simplify right side
    27,312.96x = 391,196,526.14
  5. Step 5: Solve for x
    x = 391,196,526.14/27,312.96
  6. Step 6: Final answer
    x = 14,322.74

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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.