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Finding the Fourth Proportional to 20,492.70, 30,733.65 and 6,452.70

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Solution

The fourth proportional to 20,492.70, 30,733.65 and 6,452.70 is: 9,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492.70 : 30,733.65 = 6,452.70 : x
  2. Step 2: Convert to fraction form
    20,492.70/30,733.65 = 6,452.70/x
  3. Step 3: Cross multiply
    20,492.70x = 30,733.65 × 6,452.70
  4. Step 4: Simplify right side
    20,492.70x = 198,315,023.36
  5. Step 5: Solve for x
    x = 198,315,023.36/20,492.70
  6. Step 6: Final answer
    x = 9,677.35

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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.