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Finding the Fourth Proportional to 70,410.39, 97,165.70 and 38,144.27

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Solution

The fourth proportional to 70,410.39, 97,165.70 and 38,144.27 is: 52,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,410.39 : 97,165.70 = 38,144.27 : x
  2. Step 2: Convert to fraction form
    70,410.39/97,165.70 = 38,144.27/x
  3. Step 3: Cross multiply
    70,410.39x = 97,165.70 × 38,144.27
  4. Step 4: Simplify right side
    70,410.39x = 3,706,314,451.50
  5. Step 5: Solve for x
    x = 3,706,314,451.50/70,410.39
  6. Step 6: Final answer
    x = 52,638.74

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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.