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Finding the Fourth Proportional to 8,537.25, 11,781.50 and 4,811.25

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Solution

The fourth proportional to 8,537.25, 11,781.50 and 4,811.25 is: 6,639.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.25 : 11,781.50 = 4,811.25 : x
  2. Step 2: Convert to fraction form
    8,537.25/11,781.50 = 4,811.25/x
  3. Step 3: Cross multiply
    8,537.25x = 11,781.50 × 4,811.25
  4. Step 4: Simplify right side
    8,537.25x = 56,683,717.82
  5. Step 5: Solve for x
    x = 56,683,717.82/8,537.25
  6. Step 6: Final answer
    x = 6,639.58

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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.