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Finding the Fourth Proportional to 13,606.20, 20,409.30 and 4,841.40

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Solution

The fourth proportional to 13,606.20, 20,409.30 and 4,841.40 is: 7,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.20 : 20,409.30 = 4,841.40 : x
  2. Step 2: Convert to fraction form
    13,606.20/20,409.30 = 4,841.40/x
  3. Step 3: Cross multiply
    13,606.20x = 20,409.30 × 4,841.40
  4. Step 4: Simplify right side
    13,606.20x = 98,809,585.02
  5. Step 5: Solve for x
    x = 98,809,585.02/13,606.20
  6. Step 6: Final answer
    x = 7,262.10

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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.