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Finding the Fourth Proportional to 29,327.84, 40,472.72 and 15,899.12

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Solution

The fourth proportional to 29,327.84, 40,472.72 and 15,899.12 is: 21,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,327.84 : 40,472.72 = 15,899.12 : x
  2. Step 2: Convert to fraction form
    29,327.84/40,472.72 = 15,899.12/x
  3. Step 3: Cross multiply
    29,327.84x = 40,472.72 × 15,899.12
  4. Step 4: Simplify right side
    29,327.84x = 643,480,632.01
  5. Step 5: Solve for x
    x = 643,480,632.01/29,327.84
  6. Step 6: Final answer
    x = 21,940.95

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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.