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Finding the Fourth Proportional to 8,335.80, 11,503.40 and 4,609.80

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Solution

The fourth proportional to 8,335.80, 11,503.40 and 4,609.80 is: 6,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.80 : 11,503.40 = 4,609.80 : x
  2. Step 2: Convert to fraction form
    8,335.80/11,503.40 = 4,609.80/x
  3. Step 3: Cross multiply
    8,335.80x = 11,503.40 × 4,609.80
  4. Step 4: Simplify right side
    8,335.80x = 53,028,350.27
  5. Step 5: Solve for x
    x = 53,028,350.27/8,335.80
  6. Step 6: Final answer
    x = 6,361.52

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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.