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Finding the Fourth Proportional to 27,459.67, 37,894.16 and 15,522.99

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Solution

The fourth proportional to 27,459.67, 37,894.16 and 15,522.99 is: 21,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,459.67 : 37,894.16 = 15,522.99 : x
  2. Step 2: Convert to fraction form
    27,459.67/37,894.16 = 15,522.99/x
  3. Step 3: Cross multiply
    27,459.67x = 37,894.16 × 15,522.99
  4. Step 4: Simplify right side
    27,459.67x = 588,230,477.27
  5. Step 5: Solve for x
    x = 588,230,477.27/27,459.67
  6. Step 6: Final answer
    x = 21,421.61

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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.