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Finding the Fourth Proportional to 65,045.43, 89,750.97 and 36,365.67

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Solution

The fourth proportional to 65,045.43, 89,750.97 and 36,365.67 is: 50,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.43 : 89,750.97 = 36,365.67 : x
  2. Step 2: Convert to fraction form
    65,045.43/89,750.97 = 36,365.67/x
  3. Step 3: Cross multiply
    65,045.43x = 89,750.97 × 36,365.67
  4. Step 4: Simplify right side
    65,045.43x = 3,263,854,157.20
  5. Step 5: Solve for x
    x = 3,263,854,157.20/65,045.43
  6. Step 6: Final answer
    x = 50,178.07

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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.