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Finding the Fourth Proportional to 70,923.62, 97,874.80 and 39,092.65

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Solution

The fourth proportional to 70,923.62, 97,874.80 and 39,092.65 is: 53,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,923.62 : 97,874.80 = 39,092.65 : x
  2. Step 2: Convert to fraction form
    70,923.62/97,874.80 = 39,092.65/x
  3. Step 3: Cross multiply
    70,923.62x = 97,874.80 × 39,092.65
  4. Step 4: Simplify right side
    70,923.62x = 3,826,184,957.80
  5. Step 5: Solve for x
    x = 3,826,184,957.80/70,923.62
  6. Step 6: Final answer
    x = 53,947.96

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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.