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Finding the Fourth Proportional to 70,372.32, 105,568.20 and 23,638.56

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Solution

The fourth proportional to 70,372.32, 105,568.20 and 23,638.56 is: 35,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,372.32 : 105,568.20 = 23,638.56 : x
  2. Step 2: Convert to fraction form
    70,372.32/105,568.20 = 23,638.56/x
  3. Step 3: Cross multiply
    70,372.32x = 105,568.20 × 23,638.56
  4. Step 4: Simplify right side
    70,372.32x = 2,495,480,229.79
  5. Step 5: Solve for x
    x = 2,495,480,229.79/70,372.32
  6. Step 6: Final answer
    x = 35,461.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.