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Finding the Fourth Proportional to 8,404.56, 11,599.20 and 5,261.76

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Solution

The fourth proportional to 8,404.56, 11,599.20 and 5,261.76 is: 7,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.56 : 11,599.20 = 5,261.76 : x
  2. Step 2: Convert to fraction form
    8,404.56/11,599.20 = 5,261.76/x
  3. Step 3: Cross multiply
    8,404.56x = 11,599.20 × 5,261.76
  4. Step 4: Simplify right side
    8,404.56x = 61,032,206.59
  5. Step 5: Solve for x
    x = 61,032,206.59/8,404.56
  6. Step 6: Final answer
    x = 7,261.80

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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.