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Finding the Fourth Proportional to 27,317.76, 40,986.80 and 11,526.88

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Solution

The fourth proportional to 27,317.76, 40,986.80 and 11,526.88 is: 17,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.76 : 40,986.80 = 11,526.88 : x
  2. Step 2: Convert to fraction form
    27,317.76/40,986.80 = 11,526.88/x
  3. Step 3: Cross multiply
    27,317.76x = 40,986.80 × 11,526.88
  4. Step 4: Simplify right side
    27,317.76x = 472,449,925.18
  5. Step 5: Solve for x
    x = 472,449,925.18/27,317.76
  6. Step 6: Final answer
    x = 17,294.61

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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.