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Finding the Fourth Proportional to 17,798.31, 26,705.28 and 8,445.09

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Solution

The fourth proportional to 17,798.31, 26,705.28 and 8,445.09 is: 12,671.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,798.31 : 26,705.28 = 8,445.09 : x
  2. Step 2: Convert to fraction form
    17,798.31/26,705.28 = 8,445.09/x
  3. Step 3: Cross multiply
    17,798.31x = 26,705.28 × 8,445.09
  4. Step 4: Simplify right side
    17,798.31x = 225,528,493.08
  5. Step 5: Solve for x
    x = 225,528,493.08/17,798.31
  6. Step 6: Final answer
    x = 12,671.34

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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.