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Finding the Fourth Proportional to 27,215.40, 40,808.94 and 9,682.68

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Solution

The fourth proportional to 27,215.40, 40,808.94 and 9,682.68 is: 14,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.40 : 40,808.94 = 9,682.68 : x
  2. Step 2: Convert to fraction form
    27,215.40/40,808.94 = 9,682.68/x
  3. Step 3: Cross multiply
    27,215.40x = 40,808.94 × 9,682.68
  4. Step 4: Simplify right side
    27,215.40x = 395,139,907.16
  5. Step 5: Solve for x
    x = 395,139,907.16/27,215.40
  6. Step 6: Final answer
    x = 14,518.98

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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.