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Finding the Fourth Proportional to 65,984.40, 98,861.40 and 56,768.40

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Solution

The fourth proportional to 65,984.40, 98,861.40 and 56,768.40 is: 85,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,984.40 : 98,861.40 = 56,768.40 : x
  2. Step 2: Convert to fraction form
    65,984.40/98,861.40 = 56,768.40/x
  3. Step 3: Cross multiply
    65,984.40x = 98,861.40 × 56,768.40
  4. Step 4: Simplify right side
    65,984.40x = 5,612,203,499.76
  5. Step 5: Solve for x
    x = 5,612,203,499.76/65,984.40
  6. Step 6: Final answer
    x = 85,053.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.