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Finding the Fourth Proportional to 29,551.55, 40,752.69 and 19,882.79

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Solution

The fourth proportional to 29,551.55, 40,752.69 and 19,882.79 is: 27,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,551.55 : 40,752.69 = 19,882.79 : x
  2. Step 2: Convert to fraction form
    29,551.55/40,752.69 = 19,882.79/x
  3. Step 3: Cross multiply
    29,551.55x = 40,752.69 × 19,882.79
  4. Step 4: Simplify right side
    29,551.55x = 810,277,334.08
  5. Step 5: Solve for x
    x = 810,277,334.08/29,551.55
  6. Step 6: Final answer
    x = 27,419.11

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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.