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Finding the Fourth Proportional to 70,696.96, 97,558.05 and 38,859.74

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Solution

The fourth proportional to 70,696.96, 97,558.05 and 38,859.74 is: 53,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.96 : 97,558.05 = 38,859.74 : x
  2. Step 2: Convert to fraction form
    70,696.96/97,558.05 = 38,859.74/x
  3. Step 3: Cross multiply
    70,696.96x = 97,558.05 × 38,859.74
  4. Step 4: Simplify right side
    70,696.96x = 3,791,080,457.91
  5. Step 5: Solve for x
    x = 3,791,080,457.91/70,696.96
  6. Step 6: Final answer
    x = 53,624.38

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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.