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Finding the Fourth Proportional to 9,808.71, 13,506.39 and 8,452.77

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Solution

The fourth proportional to 9,808.71, 13,506.39 and 8,452.77 is: 11,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,808.71 : 13,506.39 = 8,452.77 : x
  2. Step 2: Convert to fraction form
    9,808.71/13,506.39 = 8,452.77/x
  3. Step 3: Cross multiply
    9,808.71x = 13,506.39 × 8,452.77
  4. Step 4: Simplify right side
    9,808.71x = 114,166,408.20
  5. Step 5: Solve for x
    x = 114,166,408.20/9,808.71
  6. Step 6: Final answer
    x = 11,639.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.