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Finding the Fourth Proportional to 43,479.42, 65,229.72 and 13,492.92

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Solution

The fourth proportional to 43,479.42, 65,229.72 and 13,492.92 is: 20,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,479.42 : 65,229.72 = 13,492.92 : x
  2. Step 2: Convert to fraction form
    43,479.42/65,229.72 = 13,492.92/x
  3. Step 3: Cross multiply
    43,479.42x = 65,229.72 × 13,492.92
  4. Step 4: Simplify right side
    43,479.42x = 880,139,393.58
  5. Step 5: Solve for x
    x = 880,139,393.58/43,479.42
  6. Step 6: Final answer
    x = 20,242.67

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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.