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Finding the Fourth Proportional to 34,449.68, 51,664.25 and 13,392.99

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Solution

The fourth proportional to 34,449.68, 51,664.25 and 13,392.99 is: 20,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,449.68 : 51,664.25 = 13,392.99 : x
  2. Step 2: Convert to fraction form
    34,449.68/51,664.25 = 13,392.99/x
  3. Step 3: Cross multiply
    34,449.68x = 51,664.25 × 13,392.99
  4. Step 4: Simplify right side
    34,449.68x = 691,938,783.61
  5. Step 5: Solve for x
    x = 691,938,783.61/34,449.68
  6. Step 6: Final answer
    x = 20,085.49

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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.