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Finding the Fourth Proportional to 14,765.54, 20,375.76 and 8,051.18

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Solution

The fourth proportional to 14,765.54, 20,375.76 and 8,051.18 is: 11,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.54 : 20,375.76 = 8,051.18 : x
  2. Step 2: Convert to fraction form
    14,765.54/20,375.76 = 8,051.18/x
  3. Step 3: Cross multiply
    14,765.54x = 20,375.76 × 8,051.18
  4. Step 4: Simplify right side
    14,765.54x = 164,048,911.40
  5. Step 5: Solve for x
    x = 164,048,911.40/14,765.54
  6. Step 6: Final answer
    x = 11,110.25

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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.