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Finding the Fourth Proportional to 20,061.60, 30,063.60 and 14,755.20

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Solution

The fourth proportional to 20,061.60, 30,063.60 and 14,755.20 is: 22,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.60 : 30,063.60 = 14,755.20 : x
  2. Step 2: Convert to fraction form
    20,061.60/30,063.60 = 14,755.20/x
  3. Step 3: Cross multiply
    20,061.60x = 30,063.60 × 14,755.20
  4. Step 4: Simplify right side
    20,061.60x = 443,594,430.72
  5. Step 5: Solve for x
    x = 443,594,430.72/20,061.60
  6. Step 6: Final answer
    x = 22,111.62

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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.