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Finding the Fourth Proportional to 18,709.53, 25,820.42 and 10,754.93

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Solution

The fourth proportional to 18,709.53, 25,820.42 and 10,754.93 is: 14,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.53 : 25,820.42 = 10,754.93 : x
  2. Step 2: Convert to fraction form
    18,709.53/25,820.42 = 10,754.93/x
  3. Step 3: Cross multiply
    18,709.53x = 25,820.42 × 10,754.93
  4. Step 4: Simplify right side
    18,709.53x = 277,696,626.79
  5. Step 5: Solve for x
    x = 277,696,626.79/18,709.53
  6. Step 6: Final answer
    x = 14,842.52

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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.