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Finding the Fourth Proportional to 8,455.26, 11,671.52 and 7,569.52

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Solution

The fourth proportional to 8,455.26, 11,671.52 and 7,569.52 is: 10,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.26 : 11,671.52 = 7,569.52 : x
  2. Step 2: Convert to fraction form
    8,455.26/11,671.52 = 7,569.52/x
  3. Step 3: Cross multiply
    8,455.26x = 11,671.52 × 7,569.52
  4. Step 4: Simplify right side
    8,455.26x = 88,347,822.99
  5. Step 5: Solve for x
    x = 88,347,822.99/8,455.26
  6. Step 6: Final answer
    x = 10,448.87

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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.