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Finding the Fourth Proportional to 16,521.71, 22,818.87 and 10,881.68

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Solution

The fourth proportional to 16,521.71, 22,818.87 and 10,881.68 is: 15,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,521.71 : 22,818.87 = 10,881.68 : x
  2. Step 2: Convert to fraction form
    16,521.71/22,818.87 = 10,881.68/x
  3. Step 3: Cross multiply
    16,521.71x = 22,818.87 × 10,881.68
  4. Step 4: Simplify right side
    16,521.71x = 248,307,527.21
  5. Step 5: Solve for x
    x = 248,307,527.21/16,521.71
  6. Step 6: Final answer
    x = 15,029.17

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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.