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Finding the Fourth Proportional to 11,235.42, 16,862.31 and 7,951.68

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Solution

The fourth proportional to 11,235.42, 16,862.31 and 7,951.68 is: 11,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.42 : 16,862.31 = 7,951.68 : x
  2. Step 2: Convert to fraction form
    11,235.42/16,862.31 = 7,951.68/x
  3. Step 3: Cross multiply
    11,235.42x = 16,862.31 × 7,951.68
  4. Step 4: Simplify right side
    11,235.42x = 134,083,693.18
  5. Step 5: Solve for x
    x = 134,083,693.18/11,235.42
  6. Step 6: Final answer
    x = 11,934.02

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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.