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Finding the Fourth Proportional to 70,068.74, 96,696.90 and 38,239.69

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Solution

The fourth proportional to 70,068.74, 96,696.90 and 38,239.69 is: 52,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.74 : 96,696.90 = 38,239.69 : x
  2. Step 2: Convert to fraction form
    70,068.74/96,696.90 = 38,239.69/x
  3. Step 3: Cross multiply
    70,068.74x = 96,696.90 × 38,239.69
  4. Step 4: Simplify right side
    70,068.74x = 3,697,659,479.96
  5. Step 5: Solve for x
    x = 3,697,659,479.96/70,068.74
  6. Step 6: Final answer
    x = 52,771.88

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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.