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Finding the Fourth Proportional to 70,100.70, 96,740.43 and 38,270.94

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Solution

The fourth proportional to 70,100.70, 96,740.43 and 38,270.94 is: 52,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,100.70 : 96,740.43 = 38,270.94 : x
  2. Step 2: Convert to fraction form
    70,100.70/96,740.43 = 38,270.94/x
  3. Step 3: Cross multiply
    70,100.70x = 96,740.43 × 38,270.94
  4. Step 4: Simplify right side
    70,100.70x = 3,702,347,192.10
  5. Step 5: Solve for x
    x = 3,702,347,192.10/70,100.70
  6. Step 6: Final answer
    x = 52,814.70

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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.