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Finding the Fourth Proportional to 13,295.60, 19,942.48 and 7,375.28

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Solution

The fourth proportional to 13,295.60, 19,942.48 and 7,375.28 is: 11,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.60 : 19,942.48 = 7,375.28 : x
  2. Step 2: Convert to fraction form
    13,295.60/19,942.48 = 7,375.28/x
  3. Step 3: Cross multiply
    13,295.60x = 19,942.48 × 7,375.28
  4. Step 4: Simplify right side
    13,295.60x = 147,081,373.89
  5. Step 5: Solve for x
    x = 147,081,373.89/13,295.60
  6. Step 6: Final answer
    x = 11,062.41

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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.