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Finding the Fourth Proportional to 70,861.30, 97,590.83 and 58,813.97

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Solution

The fourth proportional to 70,861.30, 97,590.83 and 58,813.97 is: 80,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.30 : 97,590.83 = 58,813.97 : x
  2. Step 2: Convert to fraction form
    70,861.30/97,590.83 = 58,813.97/x
  3. Step 3: Cross multiply
    70,861.30x = 97,590.83 × 58,813.97
  4. Step 4: Simplify right side
    70,861.30x = 5,739,703,365.87
  5. Step 5: Solve for x
    x = 5,739,703,365.87/70,861.30
  6. Step 6: Final answer
    x = 80,999.13

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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.