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Finding the Fourth Proportional to 27,699.66, 41,549.49 and 12,918.92

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Solution

The fourth proportional to 27,699.66, 41,549.49 and 12,918.92 is: 19,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.66 : 41,549.49 = 12,918.92 : x
  2. Step 2: Convert to fraction form
    27,699.66/41,549.49 = 12,918.92/x
  3. Step 3: Cross multiply
    27,699.66x = 41,549.49 × 12,918.92
  4. Step 4: Simplify right side
    27,699.66x = 536,774,329.60
  5. Step 5: Solve for x
    x = 536,774,329.60/27,699.66
  6. Step 6: Final answer
    x = 19,378.37

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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.