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Finding the Fourth Proportional to 27,699.99, 38,226.11 and 15,125.01

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Solution

The fourth proportional to 27,699.99, 38,226.11 and 15,125.01 is: 20,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.99 : 38,226.11 = 15,125.01 : x
  2. Step 2: Convert to fraction form
    27,699.99/38,226.11 = 15,125.01/x
  3. Step 3: Cross multiply
    27,699.99x = 38,226.11 × 15,125.01
  4. Step 4: Simplify right side
    27,699.99x = 578,170,296.01
  5. Step 5: Solve for x
    x = 578,170,296.01/27,699.99
  6. Step 6: Final answer
    x = 20,872.58

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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.