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Finding the Fourth Proportional to 25,893.61, 38,852.09 and 11,665.63

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Solution

The fourth proportional to 25,893.61, 38,852.09 and 11,665.63 is: 17,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,893.61 : 38,852.09 = 11,665.63 : x
  2. Step 2: Convert to fraction form
    25,893.61/38,852.09 = 11,665.63/x
  3. Step 3: Cross multiply
    25,893.61x = 38,852.09 × 11,665.63
  4. Step 4: Simplify right side
    25,893.61x = 453,233,922.11
  5. Step 5: Solve for x
    x = 453,233,922.11/25,893.61
  6. Step 6: Final answer
    x = 17,503.70

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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.