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Finding the Fourth Proportional to 8,335.85, 11,480.14 and 8,154.41

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Solution

The fourth proportional to 8,335.85, 11,480.14 and 8,154.41 is: 11,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.85 : 11,480.14 = 8,154.41 : x
  2. Step 2: Convert to fraction form
    8,335.85/11,480.14 = 8,154.41/x
  3. Step 3: Cross multiply
    8,335.85x = 11,480.14 × 8,154.41
  4. Step 4: Simplify right side
    8,335.85x = 93,613,768.42
  5. Step 5: Solve for x
    x = 93,613,768.42/8,335.85
  6. Step 6: Final answer
    x = 11,230.26

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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.