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Finding the Fourth Proportional to 26,899.61, 40,349.09 and 12,098.08

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Solution

The fourth proportional to 26,899.61, 40,349.09 and 12,098.08 is: 18,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.61 : 40,349.09 = 12,098.08 : x
  2. Step 2: Convert to fraction form
    26,899.61/40,349.09 = 12,098.08/x
  3. Step 3: Cross multiply
    26,899.61x = 40,349.09 × 12,098.08
  4. Step 4: Simplify right side
    26,899.61x = 488,146,304.41
  5. Step 5: Solve for x
    x = 488,146,304.41/26,899.61
  6. Step 6: Final answer
    x = 18,146.97

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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.