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Finding the Fourth Proportional to 69,697.29, 96,174.54 and 38,651.76

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Solution

The fourth proportional to 69,697.29, 96,174.54 and 38,651.76 is: 53,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,697.29 : 96,174.54 = 38,651.76 : x
  2. Step 2: Convert to fraction form
    69,697.29/96,174.54 = 38,651.76/x
  3. Step 3: Cross multiply
    69,697.29x = 96,174.54 × 38,651.76
  4. Step 4: Simplify right side
    69,697.29x = 3,717,315,238.19
  5. Step 5: Solve for x
    x = 3,717,315,238.19/69,697.29
  6. Step 6: Final answer
    x = 53,335.15

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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.