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Finding the Fourth Proportional to 64,623.74, 89,173.94 and 35,938.74

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Solution

The fourth proportional to 64,623.74, 89,173.94 and 35,938.74 is: 49,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,623.74 : 89,173.94 = 35,938.74 : x
  2. Step 2: Convert to fraction form
    64,623.74/89,173.94 = 35,938.74/x
  3. Step 3: Cross multiply
    64,623.74x = 89,173.94 × 35,938.74
  4. Step 4: Simplify right side
    64,623.74x = 3,204,798,864.74
  5. Step 5: Solve for x
    x = 3,204,798,864.74/64,623.74
  6. Step 6: Final answer
    x = 49,591.67

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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.