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Finding the Fourth Proportional to 18,554.76, 25,605.18 and 10,170.72

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Solution

The fourth proportional to 18,554.76, 25,605.18 and 10,170.72 is: 14,035.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.76 : 25,605.18 = 10,170.72 : x
  2. Step 2: Convert to fraction form
    18,554.76/25,605.18 = 10,170.72/x
  3. Step 3: Cross multiply
    18,554.76x = 25,605.18 × 10,170.72
  4. Step 4: Simplify right side
    18,554.76x = 260,423,116.33
  5. Step 5: Solve for x
    x = 260,423,116.33/18,554.76
  6. Step 6: Final answer
    x = 14,035.38

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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.