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Finding the Fourth Proportional to 70,018.74, 96,706.52 and 50,983.64

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Solution

The fourth proportional to 70,018.74, 96,706.52 and 50,983.64 is: 70,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,018.74 : 96,706.52 = 50,983.64 : x
  2. Step 2: Convert to fraction form
    70,018.74/96,706.52 = 50,983.64/x
  3. Step 3: Cross multiply
    70,018.74x = 96,706.52 × 50,983.64
  4. Step 4: Simplify right side
    70,018.74x = 4,930,450,401.33
  5. Step 5: Solve for x
    x = 4,930,450,401.33/70,018.74
  6. Step 6: Final answer
    x = 70,416.15

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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.