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Finding the Fourth Proportional to 16,765.53, 25,144.11 and 5,078.58

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Solution

The fourth proportional to 16,765.53, 25,144.11 and 5,078.58 is: 7,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,765.53 : 25,144.11 = 5,078.58 : x
  2. Step 2: Convert to fraction form
    16,765.53/25,144.11 = 5,078.58/x
  3. Step 3: Cross multiply
    16,765.53x = 25,144.11 × 5,078.58
  4. Step 4: Simplify right side
    16,765.53x = 127,696,374.16
  5. Step 5: Solve for x
    x = 127,696,374.16/16,765.53
  6. Step 6: Final answer
    x = 7,616.60

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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.