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Finding the Fourth Proportional to 65,624.60, 90,553.74 and 37,330.76

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Solution

The fourth proportional to 65,624.60, 90,553.74 and 37,330.76 is: 51,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,624.60 : 90,553.74 = 37,330.76 : x
  2. Step 2: Convert to fraction form
    65,624.60/90,553.74 = 37,330.76/x
  3. Step 3: Cross multiply
    65,624.60x = 90,553.74 × 37,330.76
  4. Step 4: Simplify right side
    65,624.60x = 3,380,439,935.04
  5. Step 5: Solve for x
    x = 3,380,439,935.04/65,624.60
  6. Step 6: Final answer
    x = 51,511.78

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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.