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Finding the Fourth Proportional to 18,551.84, 25,602.12 and 10,168.34

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Solution

The fourth proportional to 18,551.84, 25,602.12 and 10,168.34 is: 14,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.84 : 25,602.12 = 10,168.34 : x
  2. Step 2: Convert to fraction form
    18,551.84/25,602.12 = 10,168.34/x
  3. Step 3: Cross multiply
    18,551.84x = 25,602.12 × 10,168.34
  4. Step 4: Simplify right side
    18,551.84x = 260,331,060.88
  5. Step 5: Solve for x
    x = 260,331,060.88/18,551.84
  6. Step 6: Final answer
    x = 14,032.63

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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.