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Finding the Fourth Proportional to 69,107.86, 95,364.90 and 38,894.44

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Solution

The fourth proportional to 69,107.86, 95,364.90 and 38,894.44 is: 53,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.86 : 95,364.90 = 38,894.44 : x
  2. Step 2: Convert to fraction form
    69,107.86/95,364.90 = 38,894.44/x
  3. Step 3: Cross multiply
    69,107.86x = 95,364.90 × 38,894.44
  4. Step 4: Simplify right side
    69,107.86x = 3,709,164,381.16
  5. Step 5: Solve for x
    x = 3,709,164,381.16/69,107.86
  6. Step 6: Final answer
    x = 53,672.11

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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.