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Finding the Fourth Proportional to 70,273.68, 96,977.66 and 38,442.60

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Solution

The fourth proportional to 70,273.68, 96,977.66 and 38,442.60 is: 53,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.68 : 96,977.66 = 38,442.60 : x
  2. Step 2: Convert to fraction form
    70,273.68/96,977.66 = 38,442.60/x
  3. Step 3: Cross multiply
    70,273.68x = 96,977.66 × 38,442.60
  4. Step 4: Simplify right side
    70,273.68x = 3,728,073,200.10
  5. Step 5: Solve for x
    x = 3,728,073,200.10/70,273.68
  6. Step 6: Final answer
    x = 53,050.78

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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.