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Finding the Fourth Proportional to 70,638.06, 97,480.04 and 38,372.38

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Solution

The fourth proportional to 70,638.06, 97,480.04 and 38,372.38 is: 52,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638.06 : 97,480.04 = 38,372.38 : x
  2. Step 2: Convert to fraction form
    70,638.06/97,480.04 = 38,372.38/x
  3. Step 3: Cross multiply
    70,638.06x = 97,480.04 × 38,372.38
  4. Step 4: Simplify right side
    70,638.06x = 3,740,541,137.30
  5. Step 5: Solve for x
    x = 3,740,541,137.30/70,638.06
  6. Step 6: Final answer
    x = 52,953.62

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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.