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Finding the Fourth Proportional to 70,823.46, 97,734.46 and 38,992.60

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Solution

The fourth proportional to 70,823.46, 97,734.46 and 38,992.60 is: 53,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,823.46 : 97,734.46 = 38,992.60 : x
  2. Step 2: Convert to fraction form
    70,823.46/97,734.46 = 38,992.60/x
  3. Step 3: Cross multiply
    70,823.46x = 97,734.46 × 38,992.60
  4. Step 4: Simplify right side
    70,823.46x = 3,810,920,705.00
  5. Step 5: Solve for x
    x = 3,810,920,705.00/70,823.46
  6. Step 6: Final answer
    x = 53,808.73

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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.