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Finding the Fourth Proportional to 18,576.76, 27,873.62 and 10,145.92

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Solution

The fourth proportional to 18,576.76, 27,873.62 and 10,145.92 is: 15,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.76 : 27,873.62 = 10,145.92 : x
  2. Step 2: Convert to fraction form
    18,576.76/27,873.62 = 10,145.92/x
  3. Step 3: Cross multiply
    18,576.76x = 27,873.62 × 10,145.92
  4. Step 4: Simplify right side
    18,576.76x = 282,803,518.63
  5. Step 5: Solve for x
    x = 282,803,518.63/18,576.76
  6. Step 6: Final answer
    x = 15,223.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.