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Finding the Fourth Proportional to 76,597.85, 105,675.99 and 47,512.73

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Solution

The fourth proportional to 76,597.85, 105,675.99 and 47,512.73 is: 65,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,597.85 : 105,675.99 = 47,512.73 : x
  2. Step 2: Convert to fraction form
    76,597.85/105,675.99 = 47,512.73/x
  3. Step 3: Cross multiply
    76,597.85x = 105,675.99 × 47,512.73
  4. Step 4: Simplify right side
    76,597.85x = 5,020,954,539.20
  5. Step 5: Solve for x
    x = 5,020,954,539.20/76,597.85
  6. Step 6: Final answer
    x = 65,549.55

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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.