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Finding the Fourth Proportional to 65,168.76, 97,758.84 and 18,421.65

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Solution

The fourth proportional to 65,168.76, 97,758.84 and 18,421.65 is: 27,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,168.76 : 97,758.84 = 18,421.65 : x
  2. Step 2: Convert to fraction form
    65,168.76/97,758.84 = 18,421.65/x
  3. Step 3: Cross multiply
    65,168.76x = 97,758.84 × 18,421.65
  4. Step 4: Simplify right side
    65,168.76x = 1,800,879,134.89
  5. Step 5: Solve for x
    x = 1,800,879,134.89/65,168.76
  6. Step 6: Final answer
    x = 27,634.09

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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.