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Finding the Fourth Proportional to 11,458.95, 17,155.62 and 7,046.69

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Solution

The fourth proportional to 11,458.95, 17,155.62 and 7,046.69 is: 10,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.95 : 17,155.62 = 7,046.69 : x
  2. Step 2: Convert to fraction form
    11,458.95/17,155.62 = 7,046.69/x
  3. Step 3: Cross multiply
    11,458.95x = 17,155.62 × 7,046.69
  4. Step 4: Simplify right side
    11,458.95x = 120,890,250.12
  5. Step 5: Solve for x
    x = 120,890,250.12/11,458.95
  6. Step 6: Final answer
    x = 10,549.85

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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.