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Finding the Fourth Proportional to 70,042.82, 96,659.06 and 38,211.93

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Solution

The fourth proportional to 70,042.82, 96,659.06 and 38,211.93 is: 52,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,042.82 : 96,659.06 = 38,211.93 : x
  2. Step 2: Convert to fraction form
    70,042.82/96,659.06 = 38,211.93/x
  3. Step 3: Cross multiply
    70,042.82x = 96,659.06 × 38,211.93
  4. Step 4: Simplify right side
    70,042.82x = 3,693,529,043.53
  5. Step 5: Solve for x
    x = 3,693,529,043.53/70,042.82
  6. Step 6: Final answer
    x = 52,732.45

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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.