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Finding the Fourth Proportional to 70,090.92, 96,727.30 and 38,262.76

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Solution

The fourth proportional to 70,090.92, 96,727.30 and 38,262.76 is: 52,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,090.92 : 96,727.30 = 38,262.76 : x
  2. Step 2: Convert to fraction form
    70,090.92/96,727.30 = 38,262.76/x
  3. Step 3: Cross multiply
    70,090.92x = 96,727.30 × 38,262.76
  4. Step 4: Simplify right side
    70,090.92x = 3,701,053,465.35
  5. Step 5: Solve for x
    x = 3,701,053,465.35/70,090.92
  6. Step 6: Final answer
    x = 52,803.61

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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.