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Finding the Fourth Proportional to 70,276.92, 96,984.56 and 38,445.84

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Solution

The fourth proportional to 70,276.92, 96,984.56 and 38,445.84 is: 53,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,276.92 : 96,984.56 = 38,445.84 : x
  2. Step 2: Convert to fraction form
    70,276.92/96,984.56 = 38,445.84/x
  3. Step 3: Cross multiply
    70,276.92x = 96,984.56 × 38,445.84
  4. Step 4: Simplify right side
    70,276.92x = 3,728,652,876.23
  5. Step 5: Solve for x
    x = 3,728,652,876.23/70,276.92
  6. Step 6: Final answer
    x = 53,056.58

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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.