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Finding the Fourth Proportional to 19,902.32, 29,856.11 and 6,751.16

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Solution

The fourth proportional to 19,902.32, 29,856.11 and 6,751.16 is: 10,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.32 : 29,856.11 = 6,751.16 : x
  2. Step 2: Convert to fraction form
    19,902.32/29,856.11 = 6,751.16/x
  3. Step 3: Cross multiply
    19,902.32x = 29,856.11 × 6,751.16
  4. Step 4: Simplify right side
    19,902.32x = 201,563,375.59
  5. Step 5: Solve for x
    x = 201,563,375.59/19,902.32
  6. Step 6: Final answer
    x = 10,127.63

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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.