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Finding the Fourth Proportional to 38,515.25, 57,776.16 and 10,813.25

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Solution

The fourth proportional to 38,515.25, 57,776.16 and 10,813.25 is: 16,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.25 : 57,776.16 = 10,813.25 : x
  2. Step 2: Convert to fraction form
    38,515.25/57,776.16 = 10,813.25/x
  3. Step 3: Cross multiply
    38,515.25x = 57,776.16 × 10,813.25
  4. Step 4: Simplify right side
    38,515.25x = 624,748,062.12
  5. Step 5: Solve for x
    x = 624,748,062.12/38,515.25
  6. Step 6: Final answer
    x = 16,220.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.