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Finding the Fourth Proportional to 17,671.32, 26,506.92 and 8,913.60

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Solution

The fourth proportional to 17,671.32, 26,506.92 and 8,913.60 is: 13,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671.32 : 26,506.92 = 8,913.60 : x
  2. Step 2: Convert to fraction form
    17,671.32/26,506.92 = 8,913.60/x
  3. Step 3: Cross multiply
    17,671.32x = 26,506.92 × 8,913.60
  4. Step 4: Simplify right side
    17,671.32x = 236,272,082.11
  5. Step 5: Solve for x
    x = 236,272,082.11/17,671.32
  6. Step 6: Final answer
    x = 13,370.37

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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.