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Finding the Fourth Proportional to 69,145.99, 103,695.87 and 27,015.14

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Solution

The fourth proportional to 69,145.99, 103,695.87 and 27,015.14 is: 40,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,145.99 : 103,695.87 = 27,015.14 : x
  2. Step 2: Convert to fraction form
    69,145.99/103,695.87 = 27,015.14/x
  3. Step 3: Cross multiply
    69,145.99x = 103,695.87 × 27,015.14
  4. Step 4: Simplify right side
    69,145.99x = 2,801,358,445.47
  5. Step 5: Solve for x
    x = 2,801,358,445.47/69,145.99
  6. Step 6: Final answer
    x = 40,513.68

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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.