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Finding the Fourth Proportional to 18,083.95, 24,955.16 and 10,125.78

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Solution

The fourth proportional to 18,083.95, 24,955.16 and 10,125.78 is: 13,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.95 : 24,955.16 = 10,125.78 : x
  2. Step 2: Convert to fraction form
    18,083.95/24,955.16 = 10,125.78/x
  3. Step 3: Cross multiply
    18,083.95x = 24,955.16 × 10,125.78
  4. Step 4: Simplify right side
    18,083.95x = 252,690,401.25
  5. Step 5: Solve for x
    x = 252,690,401.25/18,083.95
  6. Step 6: Final answer
    x = 13,973.19

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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.