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Finding the Fourth Proportional to 13,751.60, 20,623.80 and 9,368.24

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Solution

The fourth proportional to 13,751.60, 20,623.80 and 9,368.24 is: 14,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.60 : 20,623.80 = 9,368.24 : x
  2. Step 2: Convert to fraction form
    13,751.60/20,623.80 = 9,368.24/x
  3. Step 3: Cross multiply
    13,751.60x = 20,623.80 × 9,368.24
  4. Step 4: Simplify right side
    13,751.60x = 193,208,708.11
  5. Step 5: Solve for x
    x = 193,208,708.11/13,751.60
  6. Step 6: Final answer
    x = 14,049.91

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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.