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Finding the Fourth Proportional to 25,752.69, 38,577.09 and 21,580.99

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Solution

The fourth proportional to 25,752.69, 38,577.09 and 21,580.99 is: 32,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,752.69 : 38,577.09 = 21,580.99 : x
  2. Step 2: Convert to fraction form
    25,752.69/38,577.09 = 21,580.99/x
  3. Step 3: Cross multiply
    25,752.69x = 38,577.09 × 21,580.99
  4. Step 4: Simplify right side
    25,752.69x = 832,531,778.01
  5. Step 5: Solve for x
    x = 832,531,778.01/25,752.69
  6. Step 6: Final answer
    x = 32,327.95

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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.