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Finding the Fourth Proportional to 70,120.88, 96,767.84 and 38,289.10

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Solution

The fourth proportional to 70,120.88, 96,767.84 and 38,289.10 is: 52,839.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,120.88 : 96,767.84 = 38,289.10 : x
  2. Step 2: Convert to fraction form
    70,120.88/96,767.84 = 38,289.10/x
  3. Step 3: Cross multiply
    70,120.88x = 96,767.84 × 38,289.10
  4. Step 4: Simplify right side
    70,120.88x = 3,705,153,502.54
  5. Step 5: Solve for x
    x = 3,705,153,502.54/70,120.88
  6. Step 6: Final answer
    x = 52,839.52

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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.