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Finding the Fourth Proportional to 65,338.38, 98,026.74 and 20,964.15

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Solution

The fourth proportional to 65,338.38, 98,026.74 and 20,964.15 is: 31,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,338.38 : 98,026.74 = 20,964.15 : x
  2. Step 2: Convert to fraction form
    65,338.38/98,026.74 = 20,964.15/x
  3. Step 3: Cross multiply
    65,338.38x = 98,026.74 × 20,964.15
  4. Step 4: Simplify right side
    65,338.38x = 2,055,047,281.37
  5. Step 5: Solve for x
    x = 2,055,047,281.37/65,338.38
  6. Step 6: Final answer
    x = 31,452.38

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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.