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Finding the Fourth Proportional to 70,213.70, 96,894.93 and 38,382.59

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Solution

The fourth proportional to 70,213.70, 96,894.93 and 38,382.59 is: 52,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,213.70 : 96,894.93 = 38,382.59 : x
  2. Step 2: Convert to fraction form
    70,213.70/96,894.93 = 38,382.59/x
  3. Step 3: Cross multiply
    70,213.70x = 96,894.93 × 38,382.59
  4. Step 4: Simplify right side
    70,213.70x = 3,719,078,371.27
  5. Step 5: Solve for x
    x = 3,719,078,371.27/70,213.70
  6. Step 6: Final answer
    x = 52,967.99

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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.