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Finding the Fourth Proportional to 65,847.98, 90,869.52 and 35,632.64

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Solution

The fourth proportional to 65,847.98, 90,869.52 and 35,632.64 is: 49,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,847.98 : 90,869.52 = 35,632.64 : x
  2. Step 2: Convert to fraction form
    65,847.98/90,869.52 = 35,632.64/x
  3. Step 3: Cross multiply
    65,847.98x = 90,869.52 × 35,632.64
  4. Step 4: Simplify right side
    65,847.98x = 3,237,920,893.13
  5. Step 5: Solve for x
    x = 3,237,920,893.13/65,847.98
  6. Step 6: Final answer
    x = 49,172.67

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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.