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Finding the Fourth Proportional to 70,046.70, 96,659.43 and 38,214.90

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Solution

The fourth proportional to 70,046.70, 96,659.43 and 38,214.90 is: 52,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.70 : 96,659.43 = 38,214.90 : x
  2. Step 2: Convert to fraction form
    70,046.70/96,659.43 = 38,214.90/x
  3. Step 3: Cross multiply
    70,046.70x = 96,659.43 × 38,214.90
  4. Step 4: Simplify right side
    70,046.70x = 3,693,830,451.51
  5. Step 5: Solve for x
    x = 3,693,830,451.51/70,046.70
  6. Step 6: Final answer
    x = 52,733.83

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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.