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Finding the Fourth Proportional to 48,602.30, 66,633.74 and 47,716.56

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Solution

The fourth proportional to 48,602.30, 66,633.74 and 47,716.56 is: 65,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,602.30 : 66,633.74 = 47,716.56 : x
  2. Step 2: Convert to fraction form
    48,602.30/66,633.74 = 47,716.56/x
  3. Step 3: Cross multiply
    48,602.30x = 66,633.74 × 47,716.56
  4. Step 4: Simplify right side
    48,602.30x = 3,179,532,793.09
  5. Step 5: Solve for x
    x = 3,179,532,793.09/48,602.30
  6. Step 6: Final answer
    x = 65,419.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.