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Finding the Fourth Proportional to 69,730, 104,974.43 and 63,529.86

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Solution

The fourth proportional to 69,730, 104,974.43 and 63,529.86 is: 95,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,730 : 104,974.43 = 63,529.86 : x
  2. Step 2: Convert to fraction form
    69,730/104,974.43 = 63,529.86/x
  3. Step 3: Cross multiply
    69,730x = 104,974.43 × 63,529.86
  4. Step 4: Simplify right side
    69,730x = 6,669,010,841.48
  5. Step 5: Solve for x
    x = 6,669,010,841.48/69,730
  6. Step 6: Final answer
    x = 95,640.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.