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Finding the Fourth Proportional to 47,211.96, 65,151.96 and 25,990.80

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Solution

The fourth proportional to 47,211.96, 65,151.96 and 25,990.80 is: 35,867.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,211.96 : 65,151.96 = 25,990.80 : x
  2. Step 2: Convert to fraction form
    47,211.96/65,151.96 = 25,990.80/x
  3. Step 3: Cross multiply
    47,211.96x = 65,151.96 × 25,990.80
  4. Step 4: Simplify right side
    47,211.96x = 1,693,351,561.97
  5. Step 5: Solve for x
    x = 1,693,351,561.97/47,211.96
  6. Step 6: Final answer
    x = 35,867.00

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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.