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Finding the Fourth Proportional to 70,118.42, 96,763.03 and 38,287.09

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Solution

The fourth proportional to 70,118.42, 96,763.03 and 38,287.09 is: 52,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,118.42 : 96,763.03 = 38,287.09 : x
  2. Step 2: Convert to fraction form
    70,118.42/96,763.03 = 38,287.09/x
  3. Step 3: Cross multiply
    70,118.42x = 96,763.03 × 38,287.09
  4. Step 4: Simplify right side
    70,118.42x = 3,704,774,500.66
  5. Step 5: Solve for x
    x = 3,704,774,500.66/70,118.42
  6. Step 6: Final answer
    x = 52,835.97

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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.