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Finding the Fourth Proportional to 65,861.44, 90,902.64 and 60,547.84

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Solution

The fourth proportional to 65,861.44, 90,902.64 and 60,547.84 is: 83,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.44 : 90,902.64 = 60,547.84 : x
  2. Step 2: Convert to fraction form
    65,861.44/90,902.64 = 60,547.84/x
  3. Step 3: Cross multiply
    65,861.44x = 90,902.64 × 60,547.84
  4. Step 4: Simplify right side
    65,861.44x = 5,503,958,502.30
  5. Step 5: Solve for x
    x = 5,503,958,502.30/65,861.44
  6. Step 6: Final answer
    x = 83,568.75

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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.