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Finding the Fourth Proportional to 27,654.54, 41,487.96 and 7,931.58

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Solution

The fourth proportional to 27,654.54, 41,487.96 and 7,931.58 is: 11,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.54 : 41,487.96 = 7,931.58 : x
  2. Step 2: Convert to fraction form
    27,654.54/41,487.96 = 7,931.58/x
  3. Step 3: Cross multiply
    27,654.54x = 41,487.96 × 7,931.58
  4. Step 4: Simplify right side
    27,654.54x = 329,065,034.12
  5. Step 5: Solve for x
    x = 329,065,034.12/27,654.54
  6. Step 6: Final answer
    x = 11,899.13

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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.