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Finding the Fourth Proportional to 64,505.28, 89,015.04 and 37,648.56

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Solution

The fourth proportional to 64,505.28, 89,015.04 and 37,648.56 is: 51,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,505.28 : 89,015.04 = 37,648.56 : x
  2. Step 2: Convert to fraction form
    64,505.28/89,015.04 = 37,648.56/x
  3. Step 3: Cross multiply
    64,505.28x = 89,015.04 × 37,648.56
  4. Step 4: Simplify right side
    64,505.28x = 3,351,288,074.34
  5. Step 5: Solve for x
    x = 3,351,288,074.34/64,505.28
  6. Step 6: Final answer
    x = 51,953.70

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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.