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Finding the Fourth Proportional to 70,861.13, 97,786.32 and 38,595

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Solution

The fourth proportional to 70,861.13, 97,786.32 and 38,595 is: 53,259.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.13 : 97,786.32 = 38,595 : x
  2. Step 2: Convert to fraction form
    70,861.13/97,786.32 = 38,595/x
  3. Step 3: Cross multiply
    70,861.13x = 97,786.32 × 38,595
  4. Step 4: Simplify right side
    70,861.13x = 3,774,063,020.40
  5. Step 5: Solve for x
    x = 3,774,063,020.40/70,861.13
  6. Step 6: Final answer
    x = 53,259.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.