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Finding the Fourth Proportional to 18,710.84, 25,821.54 and 10,754.68

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Solution

The fourth proportional to 18,710.84, 25,821.54 and 10,754.68 is: 14,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.84 : 25,821.54 = 10,754.68 : x
  2. Step 2: Convert to fraction form
    18,710.84/25,821.54 = 10,754.68/x
  3. Step 3: Cross multiply
    18,710.84x = 25,821.54 × 10,754.68
  4. Step 4: Simplify right side
    18,710.84x = 277,702,399.81
  5. Step 5: Solve for x
    x = 277,702,399.81/18,710.84
  6. Step 6: Final answer
    x = 14,841.79

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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.