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Finding the Fourth Proportional to 13,866.39, 20,799.99 and 4,506.30

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Solution

The fourth proportional to 13,866.39, 20,799.99 and 4,506.30 is: 6,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.39 : 20,799.99 = 4,506.30 : x
  2. Step 2: Convert to fraction form
    13,866.39/20,799.99 = 4,506.30/x
  3. Step 3: Cross multiply
    13,866.39x = 20,799.99 × 4,506.30
  4. Step 4: Simplify right side
    13,866.39x = 93,730,994.94
  5. Step 5: Solve for x
    x = 93,730,994.94/13,866.39
  6. Step 6: Final answer
    x = 6,759.58

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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.