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Finding the Fourth Proportional to 17,905.24, 26,858.04 and 5,425.30

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Solution

The fourth proportional to 17,905.24, 26,858.04 and 5,425.30 is: 8,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.24 : 26,858.04 = 5,425.30 : x
  2. Step 2: Convert to fraction form
    17,905.24/26,858.04 = 5,425.30/x
  3. Step 3: Cross multiply
    17,905.24x = 26,858.04 × 5,425.30
  4. Step 4: Simplify right side
    17,905.24x = 145,712,924.41
  5. Step 5: Solve for x
    x = 145,712,924.41/17,905.24
  6. Step 6: Final answer
    x = 8,138.00

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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.