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Finding the Fourth Proportional to 27,390.42, 37,804.62 and 17,312.42

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Solution

The fourth proportional to 27,390.42, 37,804.62 and 17,312.42 is: 23,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,390.42 : 37,804.62 = 17,312.42 : x
  2. Step 2: Convert to fraction form
    27,390.42/37,804.62 = 17,312.42/x
  3. Step 3: Cross multiply
    27,390.42x = 37,804.62 × 17,312.42
  4. Step 4: Simplify right side
    27,390.42x = 654,489,459.38
  5. Step 5: Solve for x
    x = 654,489,459.38/27,390.42
  6. Step 6: Final answer
    x = 23,894.83

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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.