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Finding the Fourth Proportional to 70,113.96, 96,759.56 and 38,285.28

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Solution

The fourth proportional to 70,113.96, 96,759.56 and 38,285.28 is: 52,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,113.96 : 96,759.56 = 38,285.28 : x
  2. Step 2: Convert to fraction form
    70,113.96/96,759.56 = 38,285.28/x
  3. Step 3: Cross multiply
    70,113.96x = 96,759.56 × 38,285.28
  4. Step 4: Simplify right side
    70,113.96x = 3,704,466,847.28
  5. Step 5: Solve for x
    x = 3,704,466,847.28/70,113.96
  6. Step 6: Final answer
    x = 52,834.94

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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.