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Finding the Fourth Proportional to 14,751.60, 20,310.18 and 13,745.58

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Solution

The fourth proportional to 14,751.60, 20,310.18 and 13,745.58 is: 18,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,751.60 : 20,310.18 = 13,745.58 : x
  2. Step 2: Convert to fraction form
    14,751.60/20,310.18 = 13,745.58/x
  3. Step 3: Cross multiply
    14,751.60x = 20,310.18 × 13,745.58
  4. Step 4: Simplify right side
    14,751.60x = 279,175,204.00
  5. Step 5: Solve for x
    x = 279,175,204.00/14,751.60
  6. Step 6: Final answer
    x = 18,925.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.