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Finding the Fourth Proportional to 14,466.80, 21,746.60 and 13,439.60

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Solution

The fourth proportional to 14,466.80, 21,746.60 and 13,439.60 is: 20,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,466.80 : 21,746.60 = 13,439.60 : x
  2. Step 2: Convert to fraction form
    14,466.80/21,746.60 = 13,439.60/x
  3. Step 3: Cross multiply
    14,466.80x = 21,746.60 × 13,439.60
  4. Step 4: Simplify right side
    14,466.80x = 292,265,605.36
  5. Step 5: Solve for x
    x = 292,265,605.36/14,466.80
  6. Step 6: Final answer
    x = 20,202.51

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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.